Dense, deeply curled green leaves on a mature curly kale plant.
Photo: Rasbak · CC BY-SA 3.0. Source caption: “Form of curly kale.”. Cropped for display. Re-encoded as WebP. Responsive versions are resized; layouts may crop the display. Image adaptation available under CC BY-SA 3.0. Pictured: curly-leaf kale with no cultivar identified by the source. The image does not confirm Dwarf Blue Curled Vates; choose a labeled compact edible start for this pot.

Vegetables · A roomy patio pot in cool weather

Let’s grow
kale.

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Brassica oleracea (Acephala Group)

This plan is for Compact edible curly kale; one plant

Light: Use a sunny outdoor spot in cool weather; some shade is tolerated, but a dark patio will slow leaf growth.

Planting steps ↓

YOUR SIMPLE GROWING PLAN

One pot. Here’s the plan.

Before you start Start outdoors in cool spring or fall weather. Use a compact edible variety; an exposed pot needs a local winter-protection plan.

What you need · pot, mix & supplies
  • One 5-gallon planter with drainage
  • 1 compact edible kale nursery start
  • Fresh potting mix and clean scissors

The soil

Miracle-Gro Organic Potting Mix (US, with starter nutrients; check your bag for additional-feeding directions)

A roomy patio pot in cool weather. Start with nursery start.

THE POT5-gallon pot

Choose a stable pot with drainage, roughly 12 inches wide or more.

HOW MANY1 nursery start

Choose one compact edible curly kale from the vegetable section; keep its variety label.

See the planting illustration
Illustrated starting setup: 5-gallon pot; 1 nursery start.
5-gallon pot · 1 nursery start Choose a stable pot with drainage, roughly 12 inches wide or more. Choose one compact edible curly kale from the vegetable section; keep its variety label. Original illustration; not to scale.
  1. 01

    Choose a small, healthy start

    Buy one compact edible kale with about 4–6 developed leaves and a rooted nursery plug. Check the undersides for insects before bringing it home.

  2. 02

    Give it the whole pot

    Dampen the mix and plant the root ball at its nursery soil level. Leave space below the rim for watering.

  3. 03

    Help it settle in

    Water thoroughly and keep an eye on the mix each morning. Let an indoor-grown start adjust gradually to outdoor sun.

  4. 04

    Pick the outside leaves

    Once new growth is established, harvest a few of the older outer leaves. Leave the center and several healthy leaves to keep growing.

Other ways to start
Start with 2 seeds+

Sow 2 seeds ½ inch deep near the center of the final pot. Keep the surface moist. Once seedlings have 3–4 true leaves, snip the weaker one and keep one plant.

YOUR EVERYDAY ROUTINE

Water & fertilizer at a glance.

Water when
For a rooted plant, check each morning. Water when the top inch is dry; drain. Keep the seed layer moist if starting from seed. Empty the saucer or outer pot after draining.
Fertilizer
Miracle-Gro Water Soluble All Purpose Plant Food (US 24-8-16)
Amount
1 tablespoon in 1 US gallon of water
What that amount covers
Mix into water. Apply only enough solution to wet this pot and drain; the mixing batch is not the amount to pour on.
How often to feed
Every 14 days during active growth, once additional food is due.
When to start or pause
Use the actual mix bag’s directions for the start date. Delay if the pot is wet, pause when growth stops, and do not stack full-rate feeds.
Product directions ↗

Use level measures and the exact US formula shown. If your label differs, follow it; do not transfer this dose to another formula or combine feeding programs.

See the watering & feeding illustrations
A soil check followed by slow root watering and free drainage.
Check before watering. For a rooted plant, check each morning. Water when the top inch is dry; drain. Keep the seed layer moist if starting from seed. Original illustration; not to scale.
Fertilizer measure for Kale: 1 tablespoon in 1 US gallon of water. Mix into water. Apply only enough solution to wet this pot and drain; the mixing batch is not the amount to pour on.
1 tablespoon in 1 US gallon of water Mix into water. Apply only enough solution to wet this pot and drain; the mixing batch is not the amount to pour on. Every 14 days during active growth, once additional food is due. Use the actual mix bag’s directions for the start date. Delay if the pot is wet, pause when growth stops, and do not stack full-rate feeds. Original illustration; not to scale.
Illustrated reference for Miracle-Gro Water Soluble All Purpose, US 24-8-16; not actual packaging.

US PRODUCT REFERENCE

Miracle-Gro

Water Soluble All Purpose

24-8-16

Soluble: mix into water

Check the official US product ↗

Illustrated reference; check the manufacturer’s current packaging and US label.

When to start picking outer leaves
03 / WHAT HAPPENS NEXT

For a nursery start, wait until it has settled and is making new leaves before a first small harvest. For the seed route, use the packet’s emergence estimate and allow time to build a leafy plant first. A seed-to-maturity date is not a countdown from the day you bought a start.

Cool-weather planting and winter limits

Cool spring and fall conditions suit kale. A garden plant’s cold tolerance does not guarantee that a small exposed pot will overwinter in every US climate.

For regional planting windows, find your local Cooperative Extension office ↗.

Something looking off?

What is chewing holes in the leaves?+

Look underneath and along the leaf ribs for caterpillars. On one small plant, removing visible caterpillars by hand is a useful first check before choosing any treatment.

Do I need to wait for frost before picking?+

No. Pick usable outer leaves once the plant is established and keep the center growing. Cool weather and frost can improve flavor, but frost is not a harvest requirement. Do not assume a pot can survive every winter just because garden kale is cold-hardy.

Why are the leaves getting tough?+

Older leaves, hot conditions, and drying stress can all affect texture. Pick younger outer leaves and check the pot’s moisture.

Choosing the pot and variety
Give one kale plant room to grow

Five gallons gives one compact kale room for repeated leaf harvests. This is our simple container choice within Extension’s 3–5-gallon guidance for kale and greens, not a densely sown baby-leaf tray or a yield guarantee.

Check the kale variety's mature size

Dwarf Blue Curled Vates is one compact edible example; Burpee lists it around 16 inches tall and 12 inches wide. A nursery start need not be that exact cultivar, but check that its label describes a compact vegetable kale. Tall types and ornamental fall displays need their own growing plan.

Help with your next step.

Sources, dates & detailed PDF

Editorial plans, not results from a Plant Care Steps growing trial. Compiled with AI assistance; they have not yet had an independent horticultural review. Editorial approach.

Published · Updated

Sources checked View sources ↗

Detailed PDF ↓

Full reference edition with expanded explanations and illustrations. Its publication dates appear in the file.

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Plant Care Steps · Care card

Kale

Brassica oleracea (Acephala Group)

Water
For a rooted plant, check each morning. Water when the top inch is dry; drain. Keep the seed layer moist if starting from seed.
Light
Sun or part shade. Use a sunny outdoor spot in cool weather; some shade is tolerated, but a dark patio will slow leaf growth.
Temperature
Cool weather. A roomy patio pot in cool weather
Common problems
What is chewing holes in the leaves. Look underneath and along the leaf ribs for caterpillars. On one small plant, removing visible caterpillars by hand is a useful first check before choosing any treatment.