All About Growing Kale

Types of Kales

HOW TO GROW KALE

Kale is one of the easiest leafy greens to grow and does especially well in cool weather. It can be grown in garden beds, raised beds, or pots, and many varieties tolerate frost.

Quick Beginner Tips

• Start with easy varieties like Curly Kale or Red Russian Kale.
• Grow during cooler months for best flavor.
• Harvest often to keep plants productive.
• Mulch heavily to reduce watering and weeds.
• Kale grows very well in containers and raised beds.

1. Choose a Variety

Easy Bigginer Variety:

• Curly Kale
• Red Russian Kale
• Lacinato (Dinosaur) Kale
• Siberian Kale during cooler months

2. Growing Timeline

Month	Growth Stage	Tasks
January	Planning / Heat management	Avoid planting in extreme heat. Prepare pots, compost, mulch, and seeds for autumn planting.
February	Soil preparation	Improve soil with compost and aged manure. Choose planting location with morning sun.
March	Sowing & transplanting	Best planting time begins. Sow seeds or transplant seedlings. Water consistently.
April	Early growth	Thin seedlings, mulch soil, protect from pests like caterpillars and slugs.
May	Leaf development	Begin light harvesting of outer leaves. Feed with liquid fertilizer every 2–4 weeks.
June	Strong vegetative growth	Peak growing season. Continue harvesting regularly and remove yellow leaves.
July	Mature growth	Plants become very productive. Harvest often to encourage new leaves. Frost improves flavor.
August	Heavy harvest	Continue harvesting. Watch for aphids and mildew during damp weather.
September	Continued production	Warm weather speeds growth. Water more frequently as temperatures rise.
October	Late-season growth	Some plants may begin bolting. Remove flower stalks if growing for leaves.
November	Heat stress risk	Provide afternoon shade and extra mulch. Harvest remaining leaves before hot weather.
December	End of season / Seed saving	Old plants decline in heat. Allow flowering for pollinators or seed collection if desired.

3. Growing Conditions

• Rich, well-drained soil (6.0-7.5ph).
• Full sun to partial shade,
• Cool to mild weather (7-24°C).
• Excellent tolerance — sweeter after frost.
• Best Planting Seasons in Sydney
  • Autumn: Best season
  • Winter: Excellent
  • Early spring: Good

4. Planting

0. Prepare soil:

• Mix in: compost, aged manure and coarse organic matter.

1. Planting Steps

From Seeds: takes 5–10 days for germination

1. Sow seeds 1 cm deep, 30–45 cm apart.
2. Keep soil lightly moist.
3. Thin seedlings once they develop true leaves.

From Seedlings

1. Plant seedlings at the same depth as nursery pots.
2. Space properly for airflow.
3. Water well after planting.

2. POT Planting

• Best Variety: Wurtz (Little Cado) dwarf avocado

Pot Requirements

Kale Type	Minimum Pot Size	Ideal Depth	Plants Per Pot
Baby kale	20–25 cm wide	20 cm deep	Several plants
Curly kale	30–40 cm wide	30 cm deep	1 plant
Lacinato (Dinosaur) kale	35–45 cm wide	30–40 cm deep	1 plant
Red Russian kale	30–40 cm wide	30 cm deep	1 plant
Siberian kale	35–45 cm wide	30–40 cm deep	1 plant
Large mixed planter	50+ cm wide	30+ cm deep	2–3 plants

Pot Tips

• Bigger pots retain moisture better.
• Use pots with strong drainage holes.
• Fabric pots and raised planters work very well.
• Mulch helps prevent pots from drying out quickly.

5. Watering

Stage	Watering Needs
Seeds	Keep evenly moist
Young plants	Water 2–3 times weekly
Mature plants	Deep watering once or twice weekly
Hot weather	Increase watering frequency

Tips

• Water soil, not leaves.
• Mulch around plants to retain moisture.
• Avoid soggy soil.

6. Supporting & Pruning

Supporting: Kale usually does not need support.

• Tall varieties may benefit from staking in windy areas.
• Add mulch to stabilize roots.
• Protect young plants from strong wind.

Pruning:

Task	Method
Remove yellow leaves	Cut at base
Encourage growth	Harvest outer leaves first
Prevent disease	Improve airflow by removing crowded leaves
Flower stalks	Remove unless saving seed

Tips

• Never remove the center growing tip unless ending the plant.

7. Feeding

Fertilizer Type	Frequency
Compost	Before planting
Liquid seaweed	Every 2–4 weeks
Nitrogen-rich fertilizer	Monthly
Worm castings	Occasionally around base

Signs It Needs Feeding

• Pale leaves
• Slow growth
• Small leaves

Too much nitrogen can attract pests, so avoid overfeeding.

8. Pollination:

Kale is grown for leaves, so pollination is usually unnecessary.

If left to flower:

• Yellow flowers attract bees and beneficial insects.
• Plants can produce seeds after flowering.

Kale is generally pollinated by insects.

9. Common Problems

Problem	Symptoms	Solution
Aphids	Clusters under leaves	Spray with water or insecticidal soap
Caterpillars	Holes in leaves	Handpick or use netting
Slugs & snails	Chewed seedlings	Use traps or barriers
Whiteflies	Tiny white insects	Yellow sticky traps
Powdery mildew	White coating on leaves	Improve airflow, avoid wet leaves
Root rot	Wilting in wet soil	Improve drainage
Flea beetles	Tiny holes in leaves	Use row covers
Bolting	Flower stalks forming	Grow in cooler weather

10. Harvesting

When to Harvest

• 50–80 days depending on variety
• Start harvesting once leaves reach usable size.
• Baby kale can be harvested earlier.

How to

• Pick outer leaves first.
• Leave center leaves growing.
• Harvest regularly for continuous production.

Harvesting Tips

• Morning harvest gives best flavor.
• Frost improves sweetness.
• Older leaves become tougher.

11. Storage

Method	Storage Time
Refrigerator	5–10 days
Washed & dried	Shorter storage life
Freezing	Several months

Storage Tips

• Store unwashed in a plastic bag or container.
• Keep slightly dry.
• Blanch before freezing.

(Source: chatGPT)