GrowSabzHow to grow garlic in pots
Also called lahsan, thoum, ail, garlick · Allium sativum
لہسن
- ☀️ Sunlight
- 6–8hours daily
- 💧 Water
- 0.7 Levery 5 days, 10 L pot
- 🌡️ Ideal temp
- 13–24°C
- 🪴 Min pot
- 10 L20 cm deep
- 🧺 Harvest
- 90–150days from sowing
- ⚖️ Yield
- 1 kgper 20 L pot
Garlic is a long game. From seed it takes 1-2 years before you see a harvest, which is why most growers start from a nursery plant. Container growing is entirely possible, but the container has to be sized for a plant that will live in it for years.
Short answer
Grow garlic in a 10 litre container at least 20 cm deep, watering about 600 ml per 10 litres of soil every 5 days, and keep temperatures between 13 and 24 °C. First harvest comes 90–150 days after sowing.
Where to plant it
What size pot does garlic need?
10 litres and 20 cm deep is the realistic minimum for a single plant. Pick a container below to see what changes.
| Container | Minimum size | Depth | Notes |
|---|---|---|---|
| Pot | 10 L | 20 cm | Ensure good drainage to prevent rot. |
| Grow bag | 10 L | 20 cm | Fabric bags provide excellent aeration. |
| Open ground | — | 25 cm | Plant in well-draining soil. |
| Raised bed | 20 L | 25 cm | Ideal for controlling soil conditions and drainage. |
Watering
How often should you water garlic?
Every 5 days through the growing season, at about 600 ml per 10 litres of soil — every 3 days in hot weather, every 7 days when it turns cool. Water in the early morning. Drip irrigation or base watering works best.
Too little water
- yellowing leaves
- stunted growth
- small bulbs
Too much water
- yellowing leaves
- soft bulbs
- root rot
- fungal issues
Avoid: waterlogging; overhead watering; soggy soil.
Climate
Can you grow garlic where you live?
No hardiness zone needed — compare your actual temperatures against the plant's own limits.
| Ideal range | 13 – 24 °C |
|---|---|
| Survives | -10 – 30 °C |
| Germinates above | 5 °C — best at 18 °C, about 14 days |
| Sunlight | 6–10 hrs/day, best 8 |
| Frost | Low sensitivity |
Timeline
Garlic growing stages, day by day
Click any stage to see what's happening. Durations shift with temperature — a warm season runs roughly a quarter faster than a cool one.
Feeding
Fertiliser schedule for garlic
Feed on the interval below, changing what you give as the plant shifts from making leaves to making fruit.
| Stage | What to use | Per 10 L | Every |
|---|
How to prepare each feed
Common mistakes
Why garlic fails, and how to avoid it
- A container that is too small
Below 10 litres the root run is too shallow. The plant grows, flowers late, and drops whatever it sets because it cannot support the crop.
- Watering too lightly
A daily splash wets the top few centimetres and nothing else. Garlic wants about 600 ml per 10 litres of soil — one deep soak beats three shallow ones.
- Harvesting too late
Left too long the colour changes, seeds harden and the flavour sharpens. Pick on the signs listed below, not on the calendar.
- Planting it beside Beans
Garlic can inhibit the growth of beans and interfere with their nitrogen-fixing abilities.
Companions
What to plant with garlic
Good neighbours
Repels aphids and other common rose pests with its strong scent.
Deters borers, spider mites, and other pests that attack fruit trees.
Helps deter spider mites and aphids, which can be problematic for tomatoes.
Repels the carrot rust fly, protecting carrot roots.
Deters cabbage loopers, slugs, and other pests that target brassicas.
Acts as a general pest deterrent, protecting nearby leafy greens.
Keep apart from
Garlic can inhibit the growth of beans and interfere with their nitrogen-fixing abilities.
Similar to beans, garlic can stunt the growth of peas and reduce their yield.
Garlic can stunt the growth of asparagus, leading to reduced vigor and yield.
Some sources suggest garlic can stunt the growth of sage, though evidence is mixed.
Problems
Garlic pests and diseases
Each lists the weather that brings it on, so you know when to start checking rather than reacting once it's established.
White Rot humidity any · temp 10-20
Causes yellowing and wilting of leaves, followed by rotting of the bulb. White fungal growth with small black sclerotia may be visible at the base.
Rust humidity >80% · temp 10-20
Appears as small, orange-brown pustules on leaves and stems. Severe infections can reduce photosynthesis and bulb size.
Downy Mildew humidity >90% · temp 10-15
Characterized by pale yellow spots on leaves, often with a purplish-gray fuzzy growth on the undersides during cool, humid nights.
Botrytis Leaf Blight humidity >85% · temp 18-25
Causes grayish-brown lesions on leaves and can lead to neck rot in storage. Favored by high humidity and poor air circulation.
Onion Thrips humidity <60% · temp >25
Tiny insects that cause silvery streaks and distorted growth on leaves by rasping plant tissue. Can reduce bulb size.
Stem And Bulb Nematode humidity any · temp 15-20
Microscopic worms that cause swelling and distortion of leaves and stems, and soft, spongy, rotting bulbs. Often spread through infected cloves.
Pink Root humidity any · temp 24-28
Roots turn pink, then purple, shrivel and die, leading to stunted plant growth and reduced bulb size. Favored by warm soil.
Fusarium Basal Rot humidity any · temp 25-30
Causes yellowing of leaf tips, dieback, and a soft, watery rot at the basal plate of the bulb, often with white or pink fungal growth.
Harvest
When to harvest garlic
First picking falls between day 90 and day 150.
How to tell it's ready
- Lower leaves yellowing and drying
- Tops starting to fall over
- Still 4-5 green leaves remaining
How much to expect
Storing it: Cure in a warm, dry, airy place for 2-4 weeks. Then store in a cool, dry, dark, well-ventilated place (e.g., braided or in mesh bags).
Questions
Garlic: common questions
How long does garlic take to grow?
About 240 days from sowing to the first harvest, with picking usually starting between day 90 and day 150. Warm weather pulls that forward; cool weather pushes it back.
What size pot does garlic need?
At least 10 litres and 20 cm deep for one plant. A raised bed wants 20 litres of soil and 25 cm of depth.
How often should I water garlic?
About 600 ml per 10 litres of soil, every 5 days in normal weather — every 3 days when it is hot and every 7 days when cool. Water in the early morning.
Why is my garlic flowering but not fruiting?
Almost always pollination. Garlic carries separate male and female flowers and needs pollen moved between them — without insects, nothing sets. Hand-pollinate in the morning with a male flower brushed against the centre of a female one.
What temperature does garlic need?
It does best between 13 °C and 24 °C and survives from -10 °C to 30 °C. Seed needs soil above 5 °C to germinate, ideally around 18 °C.
Can I grow garlic in winter?
It tolerates cold better than most, down to about -10 °C, so a sheltered spot or a cold frame will often carry it through.
How do I know when garlic is ready to harvest?
Lower leaves yellowing and drying; Tops starting to fall over; Still 4-5 green leaves remaining. Once picked: cure in a warm, dry, airy place for 2-4 weeks. then store in a cool, dry, dark, well-ventilated place (e.g., braided or in mesh bags).