You can successfully cultivate garlic indoors, yielding both flavorful greens and full bulbs. This method allows anyone, even those without a garden, to enjoy homegrown garlic.
If you're curious about growing garlic indoors, a sunny windowsill with minimal equipment is all you need. While garlic bulbs require a bit more care, the effort is rewarding for a fresh kitchen harvest.
Discover how to cultivate garlic indoors and enjoy the benefits of fresh produce. However, be aware that garlic is toxic to pets.
A south-facing windowsill is perfect for indoor garlic growth
Ideal Spots for Indoor Garlic Cultivation
Garlic thrives on sunlight, ideally needing at least six hours of direct light daily for bulb development. For greens, four hours will suffice. A sunny ledge works well.
Julia Omelchenko, a botany expert, emphasizes that sufficient lighting is crucial for garlic growth. She suggests placing planters on a south-facing windowsill. Bright, diffused light is best, and consider using a grow lamp if natural light is inadequate. An affordable LED grow lamp typically costs between $20 and $30.
According to Julia, the ideal temperature for indoor garlic ranges from 64-73˚F. Avoid placing garlic near radiators or air conditioning, as they don't fare well in overly humid or cold environments.
Garlic cloves should be planted pointy-end up
Growing Garlic Greens Indoors
Garlic greens, the shoots from sprouting bulbs, are milder than garlic cloves and can be used in various recipes or as a garnish. They’re easy to grow on a windowsill, often ready for harvest in just a couple of weeks.
- Select a pot that's at least six inches deep with good drainage.
- Fill it with well-draining soil and plant cloves pointy-end up, digging them 2-3 inches deep.
- Space cloves about two inches apart, ensuring they don’t touch.
- Position the container on a sunny ledge, ensuring it receives at least four hours of direct sunlight; supplement with grow lights if needed.
Melvin Cubian, an expert at a plant care company, recommends staggered planting of cloves every 1-2 weeks to ensure a steady supply of fresh garlic greens.
He notes, “Batch planting cloves with slight intervals helps maintain access to aromatic leaves perfect for garnishing.”
Cloves can be closely planted when growing garlic greens indoors
Growing Garlic Bulbs Indoors
If you want to grow hardneck garlic varieties, they need chilling for at least 40 days at temperatures below 40˚F before planting. Softneck varieties don’t require this cold treatment.
Garlic roots are extensive, so choose a deep container, ideally six inches, for successful garlic growth in pots. Use wide planters with good drainage to allow space for multiple bulbs. Fill pots with all-purpose soil and consider mixing in compost or well-rotted manure for optimal growth.
Julia advises to plant cloves at least three inches apart in slightly moist soil, pressing them halfway in with the pointed end up. Avoid planting too deep to prevent soil compaction, which can hinder aeration.
Water the plants when the topsoil feels dry, ensuring it remains moist but not waterlogged. Overwatering risks bulb rot. Check moisture by feeling the soil or lifting the pot; a light pot indicates dryness.
Harvest garlic when the leaves yellow or brown. If the plant seems ready to flower, cut the stem to prevent negative effects on bulb development.
Garlic bulbs require up to eight months to mature
Choosing Between Hardneck or Softneck Garlic for Indoor Growth
Garlic bulbs come in hardneck and softneck varieties, each with unique growing needs. Softneck garlic is preferable for indoor growing since it doesn't require a long chilling period. It matures faster and yields more cloves, albeit smaller than hardneck types.
Both types remain accessible for purchase online at Amazon, Nature Hills, and Burpee.
Ensure pots have good drainage for garlic seedlings
Timeframe for Growing Indoor Garlic
Garlic has a lengthy growing cycle, taking up to eight months from planting to harvest for full bulbs. Regular monitoring and watering are crucial during this period. In contrast, garlic greens can be harvested in three to five weeks.
