Walking stick kale

Care Guide: Planting, Soil & Watering

Overview: Walking stick kale is a tall, fast-growing, woody-stemmed kale for full sun to light shade and mild temperatures – heat turns the leaves bitter. It wants rich, well-fertilised soil; young plants need steady moisture, but established plants can rot if kept too wet.

Quick Care Requirements

Requirement	Ideal Condition
Planting Season	Cool season – spring, autumn or winter by climate
Growth Rate	Fast
Soil Type	Rich, well-fertilised soil
Soil pH	Neutral, around 6.0-7.0
Water Need	Moderate – moist while young, easing off once established to avoid rot

Planting & Establishment

• Best Planting Season: Plant in the cool parts of the year – spring in colder zones, autumn to winter in warm ones.
• How to Plant:
  • Hole Preparation: For transplants, dig a hole a little larger than the rootball into loosened, fertile ground.
  • Soil Amendments: Dig in plenty of compost and well-rotted manure or a balanced feed before planting – kale is a hungry crop.
  • Planting Depth: Set seedlings slightly deep to anchor the tall, eventually woody stem, which can reach 1-2 m.
• Growth Speed & Expectations: Fast, developing a tall woody stem of 1-2 m – traditionally dried and used as a walking stick.

Soil, Watering & Drainage Care

• Soil Mix & Drainage Needs: Fertile, moisture-retentive but well-drained soil is ideal; in containers use a rich potting mix and never let it dry out.
• Watering Schedule & Technique:
  • Young / Newly Planted: Keep young plants consistently moist while they establish – at this stage they need reliable water.
  • Established: Ease off once established; mature plants can rot if kept too wet, so water only when the top of the soil has dried.
  • Seasonal Adjustments: More in warm, dry weather; much less in cool, wet conditions to avoid waterlogging the established stem.

Growing in Pots, Balconies & Indoors

Walking stick kale is a giant, tall-growing kale that can top head height, so it needs a large, heavy, staked pot on a sunny patio. It is not a houseplant, and its size makes it a specimen container plant rather than a windowsill one.

Quick Details

• Container Size: Very large and deep – about 30-50 L (8-13 gal); it grows tall and needs staking
• Indoor Suitability: Not a houseplant – too tall, and needs full sun and open air
• Best Spot: Full sun to light shade
• Soil & Drainage: Rich, moisture-retentive but free-draining mix
• Watering in Pots: Keep steadily moist – brassicas are thirsty and pots dry fast; do not let them dry out

Indoors & On the Windowsill

• Not a houseplant: The grower marks it ‘no’ – and its sheer height, which can top head level, rules out a windowsill. It needs full sun and open air.
• A staked patio specimen: Grow it outdoors in a large, heavy, staked tub; being frost-hardy it stays outside year-round in most climates.

On a Balcony or Patio

• Light & wind: Give them full sun and cool, fresh air; tall types catch the wind and rock, so stake them and use a large, heavy pot. Pots dry fast in sun and wind, so water often.
• Practicalities: A balcony makes it easy to net plants against cabbage caterpillars and pigeons; large tubs are heavy when wet and drain freely, so protect the floor from runoff.

Choosing the Pot, Soil & Long-Term Care

• Pot & drainage: A 30-50 L pot with strong drainage holes; skip a standing-water saucer to avoid root rot, but keep the mix consistently moist. A large, heavy tub also stays put under tall, top-heavy plants.
• Potting mix: A rich, moisture-retentive but free-draining mix – a quality potting mix with plenty of added organic matter such as compost or well-rotted manure.
• Feeding: Brassicas are hungry plants and pots leach quickly – feed regularly through the season with a balanced or nitrogen-rich liquid feed to keep leaves growing strongly.
• Longevity: Most are grown for a single crop – refresh the mix and replant for the next sowing; if you hold a plant longer, pot it on so the hungry, thirsty roots have room.

Bloom & Edible Flower Guide

Quick Details

• Bloom Season: Summer, once the plant bolts
• Time to First Bloom: Usually in its second year, or when heat and long days trigger bolting
• Flower Appearance: Small four-petalled yellow flowers on upright spikes (racemes)
• Edibility: The yellow flowers and unopened flower buds are edible, sweet and broccoli-like

Detailed Blooming Overview

Walking stick kale (Jersey cabbage) is a tall, long-lived kale famous for its woody stem. Like other kales it bolts to flower, and the buds and yellow blooms are edible.

Flower Characteristics

• Small four-petalled yellow flowers on tall spikes, opening from the bottom up.
• Buds and open flowers are edible, with a mild, sweet broccoli-like flavour.

Bloom Care & Thinning

• Managing the bloom: Unless you want seed, remove the flower stalks as they appear to keep the leaves tender and prolong the harvest.
• Pollination: An excellent bee and butterfly plant; it cross-pollinates readily with other Brassica oleracea, so isolate plants if you want true seed.

Bloom Health & Protection

• Cabbage aphids often mass on the flower stalks and buds. What helps: a strong jet of water, an insecticidal soap or neem oil.

Pruning, Training & Seasonal Maintenance

Walking-stick kale is a tall (often 1–2 m) perennial that builds a single woody stem — the stem is the whole point of the plant — so pruning is not about shaping a canopy but about harvesting the lower leaves as they mature (which progressively bares the stick), removing the flower stalk, and supporting the top-heavy stem. You keep a tuft of leaves at the growing tip so the stem keeps rising; cutting that tip out stops it. Because it is a true perennial it also tolerates a hard reset if pests strip it.

Quick Pruning & Maintenance Specs

Pruning Tolerance	Moderate — harvest lower leaves; keep the growing tip
Primary Pruning Window	Ongoing as lower leaves mature
Secondary Maintenance Window	Spring/summer — remove the flower stalk
Typical Frequency	Little and often
Main Objective	Leaf harvest, a clean tall stem, and pest sanitation
Young Plant Priority	Keep it moist and let the stem and rosette establish
Mature Plant Priority	Strip lower leaves upward; retain the top tuft; stake
Support	Stake the tall single stem against wind
Best Tool Type	Precision snips or a sharp knife; secateurs for the woody stem
Avoid Heavy Pruning During	Heat (bitter leaves) and while newly planted

Pruning by Plant Age & Size

Newly Established

Keep young plants moist and take only damaged leaves — let the stem and root system establish (note that once mature the plant prefers drier conditions, as constant wet then causes stem rot).

Young / Formative

No branching framework forms — the plant grows as one tall stem. The only ‘training’ is staking early so the stem rises straight.

Mature / Established

Harvest the oldest lower leaves at the base of the stalk, working steadily up the stem and always leaving a healthy crown of leaves at the top so growth continues. Remove any flower stalk. The bared, dried stem is the traditional walking stick.

Seasonal Pruning Schedule

Ongoing Sanitary & Harvest

Objective — clean, productive foliage on a rising stem. Remove — oldest and pest-chewed lower leaves plus their caterpillars. Do NOT remove — the top tuft/growing point. Expected response — continued upward growth.

Bolt Management

Remove the emerging flower stalk unless you want seed, to prolong leaf production.

Structural Pruning & Training

The structural task is support, not cutting — a 2 m single stem is top-heavy and snaps in wind, so tie it to a stake. Do not head the stem back unless you are deliberately resetting the plant, because that removes the growing point.

Special Growth to Remove

Remove the flower stalk to keep the plant leafy, and strip dead or chewed lower leaves. Stem cuttings can be taken for propagation. No suckers or runners occur.

Container & Small-Space Pruning

In large containers keep the plant on the drier side once established, stake the stem, and harvest lower leaves as usual — a pot will limit ultimate height somewhat but the staking and tip-retention rules are unchanged.

Tools

Precision snips or a sharp knife handle the leaf harvest; bypass secateurs are useful for the woody stem when taking cuttings or cutting the plant back. No saw, loppers or hedge shears are needed.

Tool Hygiene & Disease Risk

Increased risk — brassica leaf and vascular diseases apply. Clean, sharp blades suffice for routine harvest; disinfect after cutting diseased tissue or before taking cuttings.

Cut Placement & Technique

Cut each leaf at its base against the stem so no rotting stub is left. Remove the flower stalk low. Keep every cut below the top tuft so the growing point survives.

Heavy Pruning & Rejuvenation

As a perennial it tolerates a hard cut-back — a leggy or caterpillar-stripped plant can be cut down the stem and washed, and it will reshoot; expect a pause in harvest and support the regrowth.

Post-Pruning Care

Keep moderately fed and, once established, avoid keeping the stem base constantly wet to prevent rot. Stake regrowth and watch for aphids and caterpillar eggs.

Common Pruning Mistakes

• Cutting off the top growing tuft and halting the stem.
• Failing to stake, so the tall stem snaps or leans.
• Keeping the established stem base wet, causing rot.
• Leaving the flower stalk and letting the plant run to seed.

When NOT to Prune

Avoid heavy leaf-stripping in hot weather (bitter leaves and stress) and do not hard-cut a newly planted specimen — let it establish first.

Recommended Tools (by task)

• precision_snips — harvesting lower leaves and removing the flower stalk.
• bypass_secateurs — cutting the woody stem for cuttings or a hard reset.
• soft_ties_stakes — supporting the tall single stem against wind.

Pruning Troubleshooting

Problem	Possible Cause	What to Check	Corrective Action
Tall stem leans or snaps	Unsupported top-heavy stem in wind	That the stem is tied to a firm stake	Stake early and re-tie as it grows
Stops growing after harvest	Top growing tuft removed	Whether leaves remain at the very top	Always leave the top crown; harvest only lower leaves
Stem base rots	Established plant kept too wet	Drainage and how wet the base stays	Water less once established; improve drainage

Pests, Diseases & Troubleshooting

Overview: As a cultivated Brassica oleracea, this crop faces the classic and heavy brassica pest and disease pressure: cabbage-white and diamondback-moth caterpillars, cabbage aphids, flea beetles, cabbage root fly and cabbage whitefly among the pests, and clubroot, downy mildew, black rot and Alternaria among the diseases. Management is built on rotation, netting and healthy soil, with sprays kept to a minimum. Walking-stick (Jersey) kale grows tall on a woody stem over a long season, giving pests such as whitefly and aphids many months to accumulate — keep the lower leaves clean.

Quick Troubleshooting Overview

Issue / Pest	Main Symptom	Primary Solution
Cabbage caterpillars	Ragged holes, chewed leaves/heads, green droppings	Net crop; hand-pick; Bt (Bacillus thuringiensis)
Cabbage aphid	Grey-white mealy colonies on undersides and hearts; distortion	Blast off; insecticidal soap; encourage predators
Flea beetles	Tiny shot-holes peppering leaves, worst on seedlings	Fleece/row cover; keep moist; deter with mulch
Cabbage root fly	Wilting, stunted plants; maggots eating the roots	Brassica collars on stems; netting; rotation
Clubroot	Wilting; swollen, distorted, galled roots	Lime to raise pH, improve drainage, long rotation; resistant varieties
Downy mildew / black rot	Yellow blotches; or V-shaped yellow leaf-edge lesions	Airflow, clean seed, rotation; copper if needed

Common Pests & Management

• Cabbage white & cabbage moth caterpillars (Pieris rapae / Pieris brassicae / Mamestra brassicae):
  • Symptoms: Green or velvety caterpillars (the yellow-and-black large-white gregarious ones are especially destructive) chewing ragged holes in leaves and boring into hearts and curds, leaving masses of green-black droppings. Cabbage-moth caterpillars tunnel into the centre and foul it.
  • Prevention & Control: Net the crop with fine insect mesh from planting to exclude the egg-laying butterflies and moths — the single most effective step. Squash yellow egg clusters and hand-pick caterpillars, and encourage parasitic wasps and birds. Spray Bacillus thuringiensis (Bt kurstaki) in the evening onto the foliage for heavy infestations; it targets caterpillars only.
• Diamondback moth caterpillars (Plutella xylostella):
  • Symptoms: Small, pale-green, wriggly caterpillars that make ‘windowpane’ patches and small holes on leaf undersides and can heavily damage hearts and heads; they breed fast and have developed resistance to many insecticides.
  • Prevention & Control: Exclude with fine netting and practise rotation and good hygiene. Encourage the many natural enemies by avoiding broad-spectrum sprays. Bt or spinosad control them when netting is impractical, but rotate active ingredients to avoid resistance and time sprays to young larvae.
• Cabbage aphid & peach-potato aphid (Brevicoryne brassicae / Myzus persicae):
  • Symptoms: Dense grey-white, mealy, waxy aphid colonies packed on leaf undersides, in the hearts and on flower shoots, causing curling, stunting, honeydew and sooty mould; they also transmit viruses. Colonies hide deep in the heart where sprays miss.
  • Prevention & Control: Inspect undersides and hearts regularly and blast off early colonies with water. Encourage ladybirds, hoverflies, lacewings and parasitic wasps, and remove and destroy old brassica stumps where the aphid overwinters. Treat persistent infestations with insecticidal soap or neem, aiming well into the undersides and hearts.
• Flea beetles (Phyllotreta spp.):
  • Symptoms: Tiny black or bronze beetles that jump when disturbed and pepper the leaves — especially of seedlings — with countless small round ‘shot-holes’; heavy attack checks or kills young plants in warm, dry spells.
  • Prevention & Control: Protect seedlings and young plants with fleece or fine mesh, keep them well watered and growing fast (stress worsens damage), and raise transplants to a robust size before setting out. Yellow sticky traps and a diatomaceous-earth dusting help; established plants outgrow light damage.
• Cabbage root fly (Delia radicum):
  • Symptoms: Sudden wilting, blue-tinged foliage and stunting of young plants, whose roots are eaten by white maggots that tunnel the root system; plants may keel over and pull up easily. Worst on spring and autumn transplants.
  • Prevention & Control: Fit brassica collars (discs of card, felt or matting) snugly around each stem at soil level to stop the fly laying at the base, and/or grow under insect mesh. Rotate brassicas and firm plants in well. There is no easy rescue once maggots are present, so prevention is essential.
• Cabbage whitefly (Aleyrodes proletella):
  • Symptoms: Small white flies that rise in clouds from leaf undersides when plants are disturbed, leaving honeydew and black sooty mould on lower leaves; more of a cosmetic nuisance on leafy brassicas than a yield-killer, but persistent, especially on overwintering kale.
  • Prevention & Control: Remove and compost heavily fouled old lower leaves, clear away finished brassica plants that harbour them, and encourage natural enemies. Hose off or spray insecticidal soap or horticultural oil onto the undersides for bad infestations; whitefly are hard to eradicate, so focus on keeping numbers tolerable.

Diseases & Fungal Issues

• Clubroot (Plasmodiophora brassicae):
  • Symptoms: Stunted, wilting plants that flag in warm weather and recover overnight; pulling them reveals grossly swollen, distorted, club-like galled roots. A soil-borne organism that persists for many years (up to ~20) and thrives in acidic, wet soil — the most serious and long-lasting brassica disease.
  • Treatment & Management: There is no cure, so prevent it: never introduce it on soil, boots or bought-in plants; practise long rotations away from all brassicas; raise soil pH by liming towards neutral-to-alkaline; and sharply improve drainage. Grow clubroot-resistant varieties where available, raise sturdy transplants in clean module compost, and remove and destroy (do not compost) affected roots.
• Downy mildew (Hyaloperonospora parasitica):
  • Symptoms: Pale yellow, angular blotches bounded by veins on the upper leaf surface, with a fluffy off-white to grey mould beneath in cool, wet, humid conditions; badly affected seedlings and leaves yellow and die. Common on young plants and dense foliage.
  • Treatment & Management: Sow thinly and space plants for airflow, avoid overhead watering late in the day, and remove infected lower leaves. Practise rotation and clear crop debris. Copper-based fungicide protects a valuable crop in a wet spell, but ventilation and dry foliage are the main defence.
• Black rot (Xanthomonas campestris pv. campestris):
  • Symptoms: Characteristic V-shaped yellow lesions spreading inwards from the leaf margins, with the veins inside the V turning black; leaves yellow, wither and drop, and the vascular system blackens, sometimes rotting whole heads. A seed-borne and splash-spread bacterial disease favoured by warm, wet weather.
  • Treatment & Management: Start with clean, certified or hot-water-treated seed, since it is largely seed-borne. Rotate away from brassicas, avoid working among wet plants, control splashing and cruciferous weeds, and remove and destroy infected plants and debris. There is no effective chemical cure once plants are infected, so prevention and sanitation are everything.
• Alternaria leaf spot (Alternaria brassicae / A. brassicicola):
  • Symptoms: Dark brown to black spots with concentric ‘target-board’ rings and often a yellow halo on leaves and heads, enlarging in warm, wet weather and disfiguring or rotting curds and florets; also seed-borne.
  • Treatment & Management: Use clean seed, rotate, space for airflow and avoid prolonged leaf wetness; remove and destroy affected debris. A copper or protectant fungicide helps protect heads in a wet season, but cultural measures and clean seed are the foundation.
• White blister / white rust (Albugo candida):
  • Symptoms: Raised, shiny white blister-like pustules on leaf undersides (and sometimes distorted, swollen growth) that burst to release white spores, mainly in cool, moist conditions.
  • Treatment & Management: Improve airflow and drainage, avoid overhead watering, rotate and remove infected leaves and debris. Resistant varieties and, if needed, a protectant fungicide manage persistent problems; it is usually more disfiguring than devastating.

Growing Difficulties & Abiotic Problems

• Leaf tipburn:
  • Cause & Symptoms: Brown, scorched leaf margins (‘tipburn’) on fast-growing kale, caused by localised calcium shortage under rapid growth, heat or irregular watering rather than by disease.
  • Correction Strategy: Keep watering steady and even, avoid heavy nitrogen surges that force soft growth, and maintain adequate calcium and balanced soil moisture. Remove affected outer leaves; inner growth is unaffected.
• Nutrient deficiencies (nitrogen, magnesium):
  • Cause & Symptoms: Overall pale, yellowing older leaves and weak growth signal nitrogen shortage in these hungry crops, while interveinal yellowing of older leaves indicates magnesium deficiency, common on light or acidic soils.
  • Correction Strategy: Grow in rich, firm, well-limed soil with plenty of organic matter and feed with a balanced nitrogen-rich fertiliser during leafy growth; correct magnesium shortage with Epsom-salt (magnesium sulfate) as a foliar feed and address soil pH.
• Bolting & heat/water stress:
  • Cause & Symptoms: Premature bolting (running to flower), loose or open heads, and poor curd/head formation follow heat, drought, cold checks to young plants, or irregular watering — brassicas dislike stress and fluctuation.
  • Correction Strategy: Grow in the cooler parts of the season, keep soil evenly moist with mulch and regular deep watering, avoid transplanting stress and root-binding, and choose varieties suited to the season. Steady, unchecked growth gives the best heads and leaves.
• Root rot & waterlogging:
  • Cause & Symptoms: Yellowing, wilting and rotting roots in heavy, waterlogged soil (which also strongly favours clubroot); plants sit and sulk in cold, wet ground.
  • Correction Strategy: Improve drainage, work in organic matter, and grow on ridges or raised beds in heavy soil; avoid overwatering. Firm planting plus good drainage keeps roots healthy.

What Helps — Products & Tools

The brassica toolkit is fine insect netting / fleece and brassica stem collars as the first line against caterpillars, flea beetles, whitefly and root fly, backed by Bt (Bacillus thuringiensis) or spinosad for caterpillars and insecticidal soap / neem oil for aphids and whitefly. Garden lime (to raise pH against clubroot), clean/hot-water-treated seed, rotation and resistant varieties handle the diseases, with a copper fungicide in reserve for downy mildew, black rot and Alternaria in wet weather. Spray any oils in the evening to protect pollinators.

Propagation Guide

Walking-stick (Jersey) kale is usually grown from seed but, as a woody short-lived perennial, can also be increased from stem cuttings. Seed is fairly variable and crosses with other cabbages; propagation is easy either way.

Quick Propagation Specs

Best Propagation Method	Seed
Alternative Methods	Stem cuttings
Propagation Difficulty	Easy
Seed True-to-Type	Variable – open-pollinated and crosses with other B. oleracea
Vegetative True-to-Type	Yes
Best Propagation Season	Sow spring, autumn or winter; cuttings spring or autumn
Seed Germination Time	7–20 days
Cutting Rooting Time	2–4 weeks
Germination Temperature	15–25°C (59–77°F)
Seed Sowing Depth	0.5–1.5 cm (0.2–0.6 in)

Growing from Seed

Sowing Season

Sow in spring, autumn or winter.

Sowing Depth & Spacing

Sow 0.5–1.5 cm deep and space or thin to about 30–50 cm.

Germination Conditions & Time

Keep the soil moist and well-drained; germination takes about 7–20 days. Young plants want steady moisture, but once the woody stem is established, over-wet soil can cause rot.

Seedling Care

Grow on in fertile ground with light shade, regular water and cool temperatures.

Stem Cuttings

Take cuttings in spring or autumn and root them in water or moist, shaded soil; a rooting hormone helps and roots form in about 2–4 weeks.