How to Plant Fall Garlic for Massive Heads Next Summer

Garlic is one of those wonderful crops that asks for very little and then rewards you months later. You plant it in fall, let it settle in through winter, and finally dig up full bulbs in early or mid-summer. That long growing cycle is exactly why fall garlic planting matters so much. 

Getting the cloves into the ground at the right time and keeping them healthy through spring can make a noticeable difference in bulb size. And if your goal is plump garlic heads, start with the cloves.

Why Plant Garlic in Fall?

Garlic needs a period of cold exposure to develop properly. Fall garlic planting gives the cloves time to grow roots before winter, then more growth in spring takes over once conditions warm up.

In many regions, garlic is planted from September into November, but the right window depends on your climate. The general goal is to plant early enough for good root development before the ground freezes, but not too early that the plants put on a lot of top growth before winter.

When Should You Plant Garlic?

A better way to time it is to work backward from your local winter conditions. In colder areas, planting is generally done several weeks before the ground freezes. In milder climates, the planting window can stretch later into fall. 

Your local first frost date can help, but don't use it as an exact deadline. Soil temperature and the timing of sustained cold matter too.

Choose Large Garlic Cloves

Start with large cloves from healthy bulbs. Larger cloves tend to produce larger mature bulbs. Don't break the bulb apart days or weeks before planting. Separate the cloves right before they go into the soil, and leave the skin intact.

It may be tempting to use cloves from the grocery store, but seed garlic from a nursery or reputable supplier is a safer choice. Grocery-store garlic may have been treated to inhibit sprouting and may not be the best variety for your growing conditions.

Hardneck or Softneck Garlic?

You'll come across two main types of garlic: hardneck and softneck. Hardneck garlic develops a stiff central stalk and produces fewer, larger cloves that are easy to peel. Many gardeners also grow it for garlic scapes, the stems that appear in spring.

Softneck garlic has a softer stem and is known for storing well. Its flexible stems can also be braided after harvest. Neither is automatically better. Choose based on what matters most to you.

Some hardneck varieties are particularly well suited to colder regions, while softneck types tend to be popular in milder climates.

Give Garlic the Right Growing Spot

Garlic wants full sun, fertile soil, and good drainage. Garlic sitting in wet soil through winter is much more likely to run into problems with bulb and root diseases. 

This is one reason garlic works so well in raised garden beds. You can control the soil more easily, improve drainage, and create a dedicated garlic bed without having to fight heavy or compacted ground.

Prepare the Soil Before Planting

Work in finished compost if the bed needs more organic matter, and make sure the soil is loose enough for the cloves and developing bulbs. Garlic does not do well with heavy weed competition, so clear the planting area before you start.

For a Vego raised garden bed, this is a good time to refresh the planting area rather than turning the whole bed over. Vego's current Garden Bed Mix is formulated for raised beds and combines compost and organic materials with ingredients intended to support aeration, drainage, moisture balance, and root development.

How Deep Should You Plant Garlic?

Depth recommendations vary somewhat by region and soil, but roughly 1-2 inches deep is a common recommendation, with deeper planting used in some conditions.

In colder climates, a good mulch layer provides additional winter protection, so you don't necessarily need to bury the cloves extremely deep. A clove planted upside down can still grow, but the developing shoot has to work around itself to reach the surface.

How Far Apart Should Garlic Be Planted?

A common spacing is 3–5 inches between cloves, with roughly 15–18 inches between rows when planting in rows. If you're planting in a block rather than rows, about 5 inches in each direction works well for many home gardens. Don't be tempted to pack the cloves together just because they're small now.

Mulch Your Garlic After Planting

A layer of straw or another suitable organic mulch helps insulate the soil, reduce weed competition, conserve moisture, and protect the cloves from frost heaving as temperatures move up and down. Around 2–4 inches of straw mulch is recommended at planting. Don't pack mulch tightly against emerging shoots once growth in spring begins.

Fertilize in Spring When Growth Takes Off

Fall compost gives the bed a good foundation, but garlic can benefit from additional nutrition once spring growth begins.

Nitrogen is particularly important during the period when the leaves are actively developing. More fertilizer does not automatically mean bigger garlic. Too much can encourage excessive leaf growth or create other problems. Let your soil condition and the plant's growth tell you what it needs.

Water More During Bulb Formation

Garlic is relatively shallow-rooted, so it can be sensitive to dry soil. The most important period for consistent moisture is generally late spring into early summer, when the bulbs are swelling. 

Keep the soil evenly moist while the bulbs are developing, but don't keep it constantly soggy. As harvest approaches and the foliage begins to yellow, start to reduce your watering.

When Is Garlic Ready to Harvest?

Don't dig up the garlic just because the calendar says July. As the bulbs mature, the lower leaves begin turning yellow and brown. Check the bulbs as harvest approaches and look for well-formed cloves covered by thick, dry, papery skin.

A common rule of thumb is to harvest when about two-thirds of the foliage has dried or yellowed, while several leaves are still green. If you harvest too early, the bulbs may be smaller and not fully developed. Leave them too long and the outer wrappers can start splitting, which reduces storage life.

Can You Grow Garlic in a Raised Bed?

Raised garden beds are particularly handy for garlic because you can create the loose, well-drained soil it prefers and keep the planting area relatively weed-free. They're also convenient for a long-season crop. Garlic occupies the bed through winter and spring, so it's helpful to know exactly where it is and avoid disturbing it accidentally.

A dedicated section of a Vego raised bed works well for this. Add compost before planting, space the cloves properly, mulch the bed, and let the garlic occupy that space until summer.

Can You Grow Garlic in Containers?

Garlic can be grown in containers and planters as long as the container is deep enough, drains well, and receives plenty of sun. For a large container, plant cloves at the same general spacing you would use in a raised bed and choose a variety suited to your climate.

The biggest challenge is making sure the root zone doesn't dry out or stay waterlogged. A container also has less insulation around the roots than a larger garden bed, so winter protection may be more important in colder regions.

FAQs 

When is the best time to plant garlic?

The best time depends on your climate, but garlic should generally be planted in fall early enough to develop roots before the ground freezes. In many regions, planting falls somewhere between September and November.

Can I plant garlic in September?

Yes. September is within the fall garlic planting window in many climates, particularly in colder areas or regions where early fall planting allows roots to establish before winter. Your local climate should determine the exact timing.

How deep should garlic cloves be planted?

A common recommendation is around 1–2 inches deep, although depth can vary with climate, soil, and garlic type. Plant cloves with the pointed end facing up.

How far apart should I plant garlic cloves?

About 3–5 inches apart is common for home gardens, with roughly 15–18 inches between rows. Block plantings can use about 5 inches in each direction.

Does the size of the garlic clove affect the size of the bulb?

Yes. Larger, healthy cloves generally produce larger mature bulbs, which is why it's worth saving your biggest bulbs for planting.

Should I peel garlic cloves before planting?

No. Separate the cloves from the bulb shortly before planting, but leave the papery skin on each clove.

Can I plant garlic from the grocery store?

It isn't recommended. Grocery-store garlic may have been treated to inhibit sprouting and may not be a variety suited to your growing conditions. Seed garlic from a reputable garden supplier is a better choice.

Should I mulch garlic after planting?

Yes. Mulching with straw or another suitable organic material can help insulate the soil, reduce weeds, conserve moisture, and reduce frost heaving.

Does garlic need full sun?

Yes. Garlic grows best in full sun and well-drained soil.

When should I remove garlic scapes?

If you're growing hardneck garlic, remove the scapes when they begin to curl in late spring. This is commonly recommended to help maximize bulb development, and the scapes can be eaten.

When should I harvest garlic?

Harvest when the bulbs are fully developed and several lower leaves have yellowed or dried. A common guideline is when about two-thirds of the foliage has died back, while still leaving some green leaves.

How do I know if garlic is ready to harvest?

Dig up one bulb and check it. Mature bulbs should have clearly formed cloves and firm, dry outer wrappers. If the cloves are still small or the wrappers haven't developed properly, give the crop more time.

How long does garlic take to grow?

Fall-planted garlic typically takes most of the winter and spring to develop and is harvested in early to mid-summer, depending on the variety and climate.

Can I grow garlic in a raised garden bed?

Yes. Raised beds are well suited to garlic because they make it easier to provide loose, fertile, well-drained soil and manage weeds. Penn State Extension specifically recommends raised beds for garlic production in some growing situations.

Final Thoughts

Garlic is a little unusual in the garden because the planting and the payoff are separated by so many months. But that long growing period is exactly what gives fall-planted garlic time to establish strong roots and develop substantial bulbs.

Start with the biggest healthy cloves you can find, plant them at the right time for your climate, give them good soil and drainage, mulch them for winter, and don't neglect water once the bulbs start forming. When you dig up a row of large bulbs that you planted last fall, it‘s truly satisfying to know dinner was planned eight months ago.