Care Guide: Planting, Soil & Watering
Overview: Dahlias thrive in full sun in fertile, well-draining soil with moderate, steady moisture. They are frost-tender tuberous plants, so sharp drainage is the priority — waterlogged ground quickly rots the tubers.
Quick Care Requirements
| Requirement |
Ideal Condition |
| Planting Season |
Spring, after the last frost (mid-spring where springs stay cold) |
| Growth Rate |
Moderate |
| Soil Type |
Rich, well-draining soil with plenty of organic matter |
| Water Need |
Moderate — keep evenly moist in growth, but let the soil drain freely |
Planting & Establishment
- Best Planting Season: Plant tubers in spring once the danger of frost has passed and the soil has warmed; in colder regions hold off until mid-spring.
- How to Plant:
- Hole Preparation: Dig a hole a little wider than the tuber (roughly 10–15 cm deep) so it sits comfortably with the growing eye facing up.
- Soil Amendments: Work in compost or well-rotted organic matter, and on heavy ground add coarse sand or grit to sharpen drainage; go easy on high-nitrogen feeds, which push leafy growth at the expense of flowers.
- Planting Depth: Lay the tuber on its side about 10–15 cm deep with the crown/eye just below the surface — set the root collar level and don’t bury the emerging stem.
- Growth Speed & Expectations: Moderate; in warm, sunny conditions plants build up over the season and reach roughly 0.3–1.5 m, flowering from spring through autumn.
Soil, Watering & Drainage Care
- Soil Mix & Drainage Needs: Dahlias demand free-draining soil — soggy ground is the main cause of tuber rot. In containers use a quality, open potting mix rather than garden soil, and make sure every pot has drainage holes.
- Watering Schedule & Technique:
- Young / Newly Planted: Water lightly at planting, then hold back until shoots appear — freshly planted tubers rot easily if kept wet before they root.
- Established: Once plants are in active growth, water deeply and regularly, letting the top few centimetres dry before watering again.
- Seasonal Adjustments: Water more during hot, dry spells and less in cool weather; in cold-winter regions lift and store the tubers dry once the foliage dies back.
Growing in Pots, Balconies & Indoors
Dahlia fimbriated is not a true houseplant, but it makes a superb container plant for a sunny balcony or patio, and its blooms are excellent for cutting. Indoors the light is simply too weak – only a very sunny windowsill suits a compact cultivar, and even then the plant much prefers to be outside in full sun.
Quick Details
- Container Size: About 10-15 L (2-4 gal) for compact/patio types; 30 L or more for tall cultivars that reach up near 1.5 m
- Indoor Suitability: Not a deep-indoor houseplant; a dwarf cultivar can bloom on a bright, sunny windowsill
- Best Spot: Full sun – it needs the brightest, sunniest spot you can offer on a balcony or patio
- Soil & Drainage: Aerated, organic-rich mix (peat or coir with perlite or vermiculite); must drain freely – wet tubers rot
- Watering in Pots: Keep evenly moist through the growing season – pots dry fast; never let it sit waterlogged
Indoors & On the Windowsill
- Houseplant limits: This dahlia will not thrive as a room houseplant – it needs full sun to flower and naturally dies back to a dormant tuber, so it is grown as a seasonal container plant rather than year-round indoor greenery.
- Windowsill growing: If you want it indoors, choose a compact or dwarf (patio) cultivar and the sunniest windowsill you have, with several hours of direct sun; in weaker light it grows leggy and flowers poorly.
- Overwintering the tuber: In cold climates a pot is a real advantage – after the top growth is cut back, lift and store the tuber in a dry, frost-free place, or simply move the whole pot somewhere cool and frost-free until growth restarts in the warm season.
On a Balcony or Patio
- Light & wind: Give it the sunniest position you have – dahlias flower best in full, direct sun. Tall cultivars are top-heavy and brittle, so stake them early and shelter the pot from strong wind. Walls and paving reflect heat, so container plants dry quickly – check moisture daily in hot spells.
- Practicalities: A full, well-watered pot is heavy – make sure the balcony can take the weight, and stand it where drainage runoff will not stain or pool.
Choosing the Pot, Soil & Long-Term Care
- Pot & drainage: Use a pot with strong drainage holes sized to the cultivar; skip a standing-water saucer, since sitting in water rots the tuber. Terracotta breathes and dries faster (safer against rot), while glazed or plastic pots hold moisture longer in heat.
- Potting mix: A well-aerated, organic-rich mix – peat or coir blended with perlite or vermiculite for free drainage.
- Feeding: Potted plants need feeding more often than those in the ground because nutrients wash out – feed lightly through the growing season, favouring a low-nitrogen (higher potassium) feed, as too much nitrogen gives leaves at the expense of flowers.
- Tuber & repotting: Start each season with fresh mix; if you keep the tuber in its pot, refresh the top of the mix and pot on as the clump grows every year or two.
- Safety: Dahlias are mildly toxic if eaten and can irritate skin – keep pots out of reach of curious children and pets, and wash hands after handling tubers.
Bloom & Edible Flower Guide
Quick Details
- Bloom Season: Spring, summer and autumn
- Time to First Bloom: The same season it is planted, usually mid to late summer from spring-planted tubers
- Flower Appearance: Large multi-petalled flowers with fringed, needle-like (fimbriated) petals in a wide range of colors, often bicolored
- Edibility: Edible petals — flavor varies by variety, used mainly as a garnish
Detailed Blooming Overview
Fimbriated dahlias are all about the flower. The blooms are big and full, but what sets this group apart is the petal shape: each petal is split into fine, needle-like points that give the whole flower a fringed, feathery or ‘fingered’ look. Colors run the full dahlia range — red, magenta, purple, orange, peach, pink, maroon, yellow and white — and single flowers often carry more than one shade. They are superb cut flowers and bloom from summer into autumn.
Flower Characteristics
- Full, multi-petalled flowers with fringed, needle-like petals.
- Very wide color range, frequently more than one color per bloom.
- Petals are edible and can be used as a garnish.
Bloom Care & Thinning
- Deadhead: Remove faded flowers regularly to keep new buds forming right through the season.
- Feeding for flowers: Go easy on nitrogen — too much pushes leaves at the expense of blooms.
Bloom Health & Protection
- Petal-chewing pests and grey mould: Earwigs and slugs nibble opening buds, and Botrytis can brown the blooms in damp weather — trap or hand-pick the pests, improve airflow, and remove spoiled flowers promptly.
Pruning, Training & Seasonal Maintenance
Dahlia fimbriated is a tuberous herbaceous perennial that dies back to the ground each year, grown for blooms with narrow, needle-to-hairlike fringed (fimbriated) petals in a range of colors; pruning here means shaping soft current-season growth, not permanent wood, since new stems grow from the tuber every spring. It tolerates frequent light pinching, disbudding and deadheading through the growing season, with no woody winter pruning – the productive windows are early growth (pinch for branching) and post-frost dormancy (cut back and lift). Early tip removal multiplies flowering stems, and ongoing deadheading sustains reblooming; the fine, open fimbriated petals are more delicate to handle than a fully double bloom and are best deadheaded gently to avoid shattering them across the bed.
Quick Pruning & Maintenance Specs
| Pruning Tolerance |
Moderate – soft, fast-regrowing herbaceous tissue; no permanent wood |
| Primary Pruning Window |
Spring, from 3-4 leaf pairs (pinching), through summer bloom (deadheading/disbudding) |
| Secondary Maintenance Window |
Autumn/Winter cutback after first frost blackens foliage, before lifting |
| Typical Frequency |
Weekly light maintenance through bloom season; one full cutback at season’s end |
| Main Objective |
Build branching for more flowering stems, protect the fine fringed blooms from wind/rain damage, prolong flowering |
| Young Plant Priority |
Pinch the growing tip above a node once 3-4 leaf pairs have formed |
| Mature Plant Priority |
Deadhead continuously and gently, thin crowded basal shoots, stake before flower weight develops |
| Best Tool Type |
Precision snips for pinching/deadheading; bypass secateurs for thicker basal stems at cutback |
| Avoid Heavy Pruning During |
Active bud set before a bloom flush; strong wind (fine quill petals shred/bruise easily) |
Pruning by Plant Age & Size
Newly Established
No pruning needed beyond removing frost- or slug-damaged shoot tips in the first weeks after emergence.
Young / Formative
Pinch the growing tip above a node once 3-4 leaf pairs are present (roughly 30-40cm) to force 2-4 lateral branches.
Mature / Established
Prioritize continuous, gentle deadheading; disbudding is optional here since the fringed flower form reads well in quantity rather than as single oversized blooms.
Seasonal Pruning Schedule
Pre-Growth / Early-Spring
Objective: multi-stemmed framework. Remove: growing tip at 3-4 leaf pairs. Do not remove: lower leaves/uncrowded side shoots. Expected response: 2-4 new lateral stems within 1-2 weeks. Flowering impact: more flowering stems, slightly later first bloom.
Summer Canopy Management
Objective: sustain reblooming and protect the fine petal form. Remove: spent heads at the first strong lateral/node, overcrowded basal shoots. Do not remove: firm unopened buds. Expected response: continuous new buds. Flowering impact: direct – deadheading drives reblooming.
Dormant / Winter
Objective: prepare for storage/dormancy. Remove: all top growth to a short stub once frost blackens foliage. Do not remove: top growth before frost blackens it. Expected response: dormancy; lift (cold zones) or leave in place (zones 8-11). Flowering impact: none until next spring.
Structural Pruning & Training
No permanent framework; structural work is pinching for branching and staking. Because the fine, open fringed blooms and stems show wind damage more readily than a compact bloom form, staking earlier and slightly more securely is worthwhile in exposed sites.
Special Growth to Remove
Spent flower stems (cut to the first strong lateral, handling gently so the fringed petals of neighboring blooms are not shattered); thin excess basal shoots on crowded clumps. No rootstock suckers, watersprouts or runners apply.
Container & Small-Space Pruning
Suited to planter/container growing per this plant’s facts; pinch earlier and slightly harder for compact size, stake early against toppling and wind damage to the delicate petals, water more after cutback as container soil dries faster.
Tools
Precision snips for pinching and gentle deadheading of the fine-petalled blooms; bypass secateurs for thicker basal stems at cutback; soft ties or stakes to protect stems and blooms in wind. No saw or hedge shears apply.
Tool Hygiene & Disease Risk
Increased risk: Dahlia mosaic virus and other sap-transmissible viruses are common in dahlia stock and spread on cutting blades; disinfect blades between plants and cultivars.
Cut Placement & Technique
Pinch just above a node. Deadhead by cutting back to the first strong lateral bud or node rather than pulling, since the fringed petals detach and scatter easily if handled roughly; distinguish rounded spent flowers from firm pointed buds before cutting.
Heavy Pruning & Rejuvenation
Not applicable in the woody sense. Full top growth is removed once yearly as dormancy management. Congested clumps are rejuvenated by dividing the tuber at lifting, not by pruning top growth.
Post-Pruning Care
No feeding needed after pinching/deadheading – the plant is already on its normal routine and soft-tissue wounds close within days; watch cuts for aphids or slugs. After autumn cutback, focus on curing/drying the lifted tuber.
Common Pruning Mistakes
Mistaking a firm unopened bud for a spent flower and cutting off developing buds; handling the fine fringed petals roughly during deadheading and shattering them onto nearby blooms; skipping staking in exposed/windy sites where the delicate petal form is quickest to show damage; cutting back and lifting before frost has fully blackened the foliage.
When NOT to Prune
Avoid hard cutback before the first killing frost blackens top growth. Avoid deadheading in strong wind, when the fine quill petals are most easily torn during handling; wet-weather grey mold risk is comparatively lower here than for fully double forms since the open fringed petals shed moisture more readily, but still avoid cutting soaked stems where practical. Avoid pinching during active bud set right before a bloom flush. Avoid heavy stem removal immediately after transplanting spring divisions.
Recommended Tools (by task)
- Young plant, pinching growing tips: precision_snips – clean small cuts on soft hollow stems.
- Mature plant, gentle deadheading of fringed blooms: precision_snips – minimizes disturbance to the delicate petal form.
- Mature plant, staking in exposed sites: soft_ties_stakes – protects the fine, wind-sensitive blooms and stems.
Pruning Troubleshooting
| Problem |
Possible Cause |
What to Check |
Corrective Action |
| No side branching, single tall stem |
Growing tip never pinched |
Leaf-pair count at first pinch |
Pinch above a node once 3-4 leaf pairs present |
| Petals shredded or scattered near cut blooms |
Rough handling during deadheading in wind |
Wind conditions and handling technique |
Deadhead calmly on still days, cutting rather than pulling |
| Stems leaning or snapped after wind/rain |
Staking installed too late |
Stake timing vs plant height |
Stake at planting or by 30-40cm height |
| Fewer blooms overall through summer |
Deadheading not keeping pace with spent flowers |
Frequency of deadheading visits |
Deadhead at least weekly during peak bloom |
Pests, Diseases & Troubleshooting
Overview: Dahlias are vigorous, soft-tissue tuberous perennials whose lush foliage and long-lasting blooms attract a predictable set of chewing and sap-sucking pests, with slugs and earwigs the two standouts and powdery mildew the classic late-season disease. Most trouble is prevented culturally — good spacing and airflow, tidy beds, firm staking, careful watering at the base, and clean lifting and storage of the tubers over winter. Reach for organic and barrier methods first, keeping any sprays targeted and pollinator-safe because the open blooms are a magnet for bees.
Quick Troubleshooting Overview
| Issue / Pest |
Main Symptom |
Primary Solution |
| Slugs & snails |
Ragged holes and slime trails, young shoots stripped overnight |
Hand-pick after dark; iron-phosphate pellets; grit or copper barrier rings |
| Earwigs |
Petals and flower buds chewed ragged; irregular holes in blooms |
Trap in rolled cardboard or straw-stuffed upturned pots; clear debris |
| Aphids |
Sticky honeydew, distorted shoot tips, sooty mould, virus spread |
Blast off with water; insecticidal soap; encourage ladybirds and lacewings |
| Thrips |
Silvery flecking, streaked petals; can transmit spotted wilt virus |
Blue sticky traps; remove weeds; insecticidal soap or spinosad if severe |
| Powdery mildew |
White powdery film on leaves, worst late in the season |
Improve airflow, remove lower leaves; sulphur or potassium-bicarbonate spray |
| Tuber rot |
Soft, foul-smelling tubers in wet soil or winter storage |
Improve drainage; cure and dry tubers; store cool, dry and airy |
Common Pests & Management
- Slugs & Snails (Deroceras & Helix spp.):
- Symptoms: The number-one enemy of young dahlias — emerging shoots and new tubers are shredded or grazed to the ground overnight, with tell-tale silvery slime trails and ragged-edged holes. Damage is heaviest in mild, damp weather and on newly planted tubers.
- Prevention & Control: Patrol beds after dark with a torch and hand-pick; clear leaf litter, boards and pot rims where they shelter. Ring vulnerable shoots with sharp grit, crushed shell or copper tape, and set beer traps. Where pressure is high, use iron-phosphate pellets (safe around pets and wildlife) sparingly. Encourage frogs, ground beetles and birds.
- Earwigs (Forficula auricularia):
- Symptoms: The signature dahlia flower pest — they feed at night, chewing ragged holes in petals and gnawing developing buds, so blooms open lopsided or tattered. Hide by day deep inside the flower or under debris. (They also eat aphids, so populations are worth managing rather than eradicating.)
- Prevention & Control: Trap them with loosely rolled corrugated cardboard or straw-stuffed upturned pots set on canes among the plants, emptied each morning. Keep the bed clear of litter and hollow stems. Grease-band stakes to block climbers. Reserve any spot treatment for heavy infestations and never spray open blooms during the day when bees are active.
- Aphids (Aphis fabae & Myzus persicae):
- Symptoms: Colonies of green or black soft-bodied insects cluster on shoot tips, buds and leaf undersides, causing curled, distorted growth, sticky honeydew and sooty mould. Critically, they are efficient vectors of dahlia mosaic and other viruses, so control protects the whole stock.
- Prevention & Control: Dislodge colonies with a firm jet of water; pinch out infested tips. Encourage ladybirds, lacewings and hoverflies. Treat persistent colonies with insecticidal soap or a light horticultural-oil spray, applied in the evening to spare pollinators. Avoid excess nitrogen, which fuels soft, aphid-prone growth.
- Thrips (Frankliniella occidentalis):
- Symptoms: Tiny slender insects that rasp leaves and petals, leaving silvery flecking, pale streaks and distorted, discoloured blooms. Most important as the vector of tomato spotted wilt virus (TSWV), which causes ring-spots and stunting.
- Prevention & Control: Hang blue sticky traps to monitor and reduce numbers; remove weeds that host them. Encourage predatory mites and minute pirate bugs. For outbreaks use insecticidal soap or spinosad, rotating products; rogue out any virus-symptomatic plants promptly.
- Two-spotted Spider Mite (Tetranychus urticae):
- Symptoms: In hot, dry conditions leaves take on a fine pale stippling, then bronze and dry, with delicate webbing on the undersides. Worst on stressed, under-watered plants and in still air.
- Prevention & Control: Raise humidity and keep plants well watered; hose down leaf undersides. Introduce predatory mites (Phytoseiulus persimilis) under cover. Treat with horticultural oil or insecticidal soap, ensuring thorough coverage of leaf undersides; avoid broad-spectrum insecticides that kill mite predators.
- Capsid Bugs (Lygocoris pabulinus):
- Symptoms: Sap-sucking at shoot tips and buds kills small patches of tissue; as leaves expand these become many ragged, tattered holes, and buds may abort or open distorted. The bugs themselves are fast-moving and easily missed.
- Prevention & Control: Keep beds and surrounding weeds tidy to reduce breeding sites. Damage is usually cosmetic and tolerable; for repeated severe attacks an evening application of an approved contact insecticide at first sign can be used, but cultural tidiness is normally enough.
- Caterpillars & Cutworms (noctuid moth larvae, Agrotis spp.):
- Symptoms: Caterpillars chew irregular holes in leaves and buds, while soil-dwelling cutworms sever young stems at the base, felling whole shoots overnight. Look for droppings and for larvae curled in the surface soil by day.
- Prevention & Control: Hand-pick larvae at dusk; fit cardboard or foil collars around young stems against cutworms. Hoe soil to expose larvae to birds. Biological Bacillus thuringiensis (Bt) sprays control leaf-feeding caterpillars selectively without harming beneficials.
Diseases & Fungal Issues
- Powdery Mildew (Golovinomyces cichoracearum):
- Symptoms: The classic late-season dahlia disease — a white to greyish powdery coating spreads over upper leaf surfaces, which may yellow and dry. Favoured by crowding, dry roots and cool humid nights, it rarely kills but disfigures foliage and weakens plants.
- Treatment & Management: Space plants for good airflow, remove congested lower leaves, and keep roots evenly watered (drought stress worsens it). Clear and destroy affected debris. At first signs apply sulphur, potassium bicarbonate or a suitable fungicide, repeating as directed; choose resistant cultivars where possible.
- Grey Mould / Botrytis (Botrytis cinerea):
- Symptoms: In damp weather blooms and buds rot with brown, water-soaked patches and a fuzzy grey mould, especially on ageing or densely petalled flowers and after rain. Can spread back into stems.
- Treatment & Management: Deadhead spent and spotted blooms promptly and bin them; improve spacing and airflow; avoid overhead watering late in the day. Remove and destroy affected tissue. A protectant fungicide helps in persistently wet spells; good hygiene is the main defence.
- Dahlia Mosaic Virus & Tomato Spotted Wilt Virus:
- Symptoms: Mosaic virus causes pale mottling, vein-banding, stunting and puckered leaves; spotted wilt adds ring-spots, necrotic flecks and distorted growth. Both are spread by insect vectors (aphids and thrips respectively) and by taking cuttings/divisions from infected stock — there is no cure.
- Treatment & Management: Rogue out and destroy symptomatic plants and their tubers promptly to protect the collection. Control aphids and thrips, disinfect cutting tools between plants, and propagate only from healthy, vigorous stock. Manage weeds that harbour virus and vectors.
- Verticillium & Fusarium Wilt (Verticillium dahliae, Fusarium oxysporum):
- Symptoms: Soil-borne fungi invade the water-conducting tissue, causing leaves to yellow, wilt and die — often one side or the lower foliage first — with brown staining visible in cut stems. Plants collapse in warm weather despite moist soil.
- Treatment & Management: No cure once infected: remove and destroy affected plants and do not compost them or their tubers. Practise rotation, avoid replanting dahlias in known infected ground for several years, improve drainage, and start with clean stock in fresh or well-drained soil.
- Tuber Storage / Bacterial Soft Rot (Pectobacterium / Erwinia spp.):
- Symptoms: Lifted tubers turn soft, slimy and foul-smelling in storage, or rot in cold, waterlogged ground. Fungal storage rots appear as sunken, mouldy patches. Entry is usually through wounds made at lifting.
- Treatment & Management: Lift after the first frost, handle gently to avoid bruising, and cure tubers so cut surfaces dry before storing. Keep them in a cool, dry, airy, frost-free place in dry medium; inspect through winter and discard any that soften before rot spreads.
Growing Difficulties & Abiotic Problems
- Tuber Rot in Wet or Cold Storage / Waterlogged Soil:
- Cause & Symptoms: Dahlia tubers are prone to rotting when kept too wet or too cold — in heavy, waterlogged soil over winter, or in damp storage. Tubers go soft, dark and mushy and fail to sprout.
- Correction Strategy: Plant in free-draining soil enriched with organic matter and never let dormant tubers sit in soggy ground. Where winters are wet or cold, lift, cure and store dry. Water plants generously in growth but ease off as they die back.
- Frost Blackening:
- Cause & Symptoms: Dahlias are frost-tender; the first hard frost blackens foliage and stems overnight, and prolonged freezing kills unprotected tubers in the ground.
- Correction Strategy: After the first frost blackens the tops, cut back and either lift and store the tubers frost-free, or in mild areas leave them in place under a deep dry mulch. Plant out only once frost danger has passed.
- Failure to Bloom / All Leaf and No Flower:
- Cause & Symptoms: Lush foliage with few flowers usually signals too much nitrogen or too little light; plants in shade or over-fed also grow soft and flop.
- Correction Strategy: Give a full-sun position and feed with a higher-potassium (bloom) fertiliser rather than high-nitrogen feeds. Pinch out the growing tip of young plants to encourage branching, and deadhead regularly to keep new buds coming.
- Weak Stems, Flopping & Disbudding Needs:
- Cause & Symptoms: The tall, brittle, hollow stems and heavy blooms snap or flop in wind and rain, and crowded buds give smaller flowers.
- Correction Strategy: Stake plants at planting and tie in as they grow; pinch young plants to build a sturdy branched framework. For larger show blooms, disbud (remove the two side buds below each terminal bud); shelter from strong wind.
What Helps — Products & Tools
For this plant the useful toolkit is: iron-phosphate slug pellets plus grit or copper barriers and beer traps for slugs and snails; rolled-cardboard or straw-pot earwig traps; insecticidal soap and light horticultural/neem oil for aphids, thrips and spider mites; blue and yellow sticky traps for monitoring; Bacillus thuringiensis (Bt) for caterpillars; sulphur or potassium-bicarbonate spray for powdery mildew; a protectant fungicide and rigorous deadheading for Botrytis; and sturdy stakes with soft ties for support. Spray any oils or soaps in the evening to protect bees on the open blooms.
Propagation Guide
Dahlia fimbriated (fimbriated dahlias), grown for its fringed, needle- or hair-like petals in a wide range of colors, is propagated by dividing its tuberous clump, since vegetative propagation is required to keep the fringed flower form and specific color combination true; seed-grown plants would not reproduce it reliably. Division is a routine home-garden method, making overall propagation Easy.
Quick Propagation Specs
| Best Propagation Method |
Tuber (clump) division |
| Alternative Methods |
Basal stem cuttings from sprouted tubers (for faster multiplication) |
| Propagation Difficulty |
Easy |
| Vegetative True-to-Type |
Yes – required to preserve this named cultivar |
| Best Propagation Season |
Spring (mid-spring in cold climates) |
| Cutting Rooting Time |
New root growth typically begins within 1-2 weeks of division/planting, per site data |
Division, Offsets, Pups & Suckers
In cold areas the tuber clump is lifted at season’s end after cutting back the foliage (site data); in warm areas only spent flowers and dead leaves need removal and tubers can often stay in the ground. Divide clumps in spring, the site’s stated preferred time, once growth eyes are visible near the old stem base — each division needs at least one eye and an intact tuber section. Use a clean, sharp knife, let cuts dry briefly before planting, and discard soft or rotten pieces to avoid the bulb rot the site notes. According to site data, new divisions typically begin producing roots within about 1-2 weeks of planting, with aftercare from that point following the same watering, light and soil routine as an established plant (site data).
Stem Cuttings
For faster multiplication of a valued clump, basal shoots from a pre-sprouted tuber can be removed in late winter/early spring with a small piece of the crown attached and rooted in a light, well-drained mix under warm, humid conditions; rooting hormone is optional. This is a supplementary method beyond standard home division.