Growing garlic in Wisconsin can be a rewarding experience for any gardener. With the right conditions and knowledge, a garlic crop can thrive in the cold Wisconsin climate. Garlic is a hardy plant that is relatively easy to grow and can be used in a variety of dishes. It is an excellent addition to any garden for its flavor and its numerous health benefits. With some know-how, anyone can grow their own garlic in Wisconsin and enjoy the taste and health benefits it provides.
Wisconsin’s climate and hardiness zones
Wisconsin has a humid continental climate, with hot summers, cold winters, and abundant precipitation throughout the year. The average annual temperature for the state is around 40 degrees Fahrenheit. Winters are cold, with average temperatures ranging from 10 to 20 degrees Fahrenheit, while summers are warm to hot, with average temperatures in the 70s and 80s.
The USDA Hardiness Zones for Wisconsin range from Zone 3a in the northern part of the state to Zone 5b in the south. Zone 3a experiences temperatures as low as -35 degrees Fahrenheit, while Zone 5b experiences temperatures as low as -15 degrees Fahrenheit.
Wisconsin experiences all four seasons, with spring and fall providing mild temperatures and abundant rainfall. Summer and winter are the most extreme seasons, with temperatures ranging from hot and humid to below-freezing. Snow is common during the winter months and thunderstorms are frequent during the spring and summer.
When to plant spring garlic in Wisconsin
Garlic can be planted in the spring or fall in Wisconsin. For spring planting garlic, you will want to purchase some high-quality garlic starter bulbs. You can plant garlic you find in the store, but selecting cloves that are specifically made for growing will yield better results.
When selecting garlic, you want to make sure the bulbs are firm and have no visible signs of decay. Any bulbs which are mushy Once you have your bulbs, you will need to separate the cloves and plant them in the ground.
Garlic can be planted outdoors once the weather has warmed and the soil can be worked. It’s among the earliest crops you can sow in the spring. When planting garlic, make sure to space the cloves at least 6 inches apart in a sunny area with well-drained soil. Plant the cloves two inches deep in the soil so that the pointed end is facing up. Water the garlic regularly and keep it free of weeds.
You can mulch your spring-planted garlic with dried leaves or straw to help retain moisture and suppress the growth of weeds. Garlic planted in the spring in Wisconsin won’t have as much time to grow as fall planted garlic, so your harvest in the fall may yield slightly smaller bulbs.
Aged manure, compost, and fresh rabbit manure are all great things to add at this time. I keep rabbits for their manure and always throw on a nice layer of rabbit manure when planting fall garlic.
When to plant fall garlic in Wisconsin
Some gardeners consider planting garlic in the fall in Wisconsin to be advantageous because it allows the garlic bulbs to get a head start on the growing season. In fall, they’ll begin to put down roots but likely won’t send up any growth. Those early roots are important for the plant’s development. As soon as the soil is warm enough to spur new growth, your garlic bulbs will be ready to rock and roll.
The exact timing for planting fall garlic will depend on your climate zone. The old-fashioned rule of thumb is to plant them right after the autumn equinox in September, but if you live in a very cold climate, you may want to get them in the ground a little bit before this date. If you live in a warmer climate, you can probably wait all the way until the middle of October to get them started. Knowing your climate is key to knowing when exactly to plant your fall garlic.
Planting garlic is extremely easy. If you’ve purchased bulbs from a nursery, you’re going to want to very carefully break up the bulb and free all of the cloves. Don’t get too aggressive! You don’t want to smash any of the bulbs by accident. Gently rubbing them between your hands should liberate the individual cloves.
Dig holes in a row three inches deep and six inches apart from one another. Carefully drop the cloves of garlic into each hole with the pointed side pointing up. Press them gently into the soil. Don’t jam them in too hard or deep. Cover the bulbs with an even layer of soil.
Aged manure, compost, and fresh rabbit manure are all great things to add at this time. I keep rabbits for their manure and always throw on a nice layer of rabbit manure when planting fall garlic.
Caring for garlic plants
Soil: Garlic plants require nutrient-rich, well-draining soil to thrive. Amend the soil with plenty of organic material such as compost or aged manure before planting. Garlic doesn’t do well in compacted, clay soils, so be sure to loosen up the soil!
Sunlight: Garlic needs at least 6 hours of direct sunlight each day, but preferably 8-10 hours of sunlight daily. Choose a location that gets plenty of sunlight. Insufficient sunlight may result in garlic that doesn’t thrive or produce bulbs.
Water: Garlic plants need between 0.5 and 1 inch of water per week, with ideal drainage in the soil. If there is not enough rainfall to reach this amount, it is necessary to water the plants manually to make up for it. Make sure to water deeply and infrequently, as too little or too much water can be damaging to the plants – too little can cause stress, and too much can lead to bulb rot.
Fertilizer: Aged manure, compost, and fresh rabbit manure are all great, natural fertilizers to provide your garlic bulbs. It’s best to provide these once at the time you plant your garlic bulbs.
When to harvest garlic in Wisconsin
The exact timing for when fall garlic is ready to be harvested in Wisconsin varies. Typically they’re ready to harvest in late summer to mid-fall. The timing doesn’t matter as much as the appearance of the crop. You know it’s time to harvest your fall garlic when its lower third leaves have turned brown and died, but its upper foliage is still nice and green.
It can be a little hard to know for sure that it’s time to harvest your garlic, but generally, if those bottom leaves are brown, it’s time to harvest. If they’re still green, it’s too early. There will be some green foliage at the tops of the plants, but don’t let that fool you. If those lower leaves are brown, it’s time to get down in the ground and dig up that garlic!
