If you’re a gardener in the Old Dominion, knowing when do you plant potatoes in Virginia is the first step to a great harvest. The timing is everything, and it depends heavily on where you live in the state.
Virginia’s climate varies from the cooler mountains to the warmer coastal plains. This means your planting window isn’t the same as your neighbor’s a few counties over. But don’t worry, with a few simple guidelines, you’ll have your seed potatoes in the ground at the perfect moment.
When Do You Plant Potatoes in Virginia
The best time for planting potatoes in Virginia is typically in early spring. You aim to get them in the ground about 2-4 weeks before your last expected spring frost date. Potatoes can handle a light frost and even prefer to grow in the cool spring weather.
However, Virginia has three main climate regions, and each has its ideal schedule:
* Coastal Plains & Piedmont (Central VA): Plant from mid-March to early April.
* Shenandoah Valley & Foothills: Plant from early to mid-April.
* Mountain Regions: Wait until late April or even early May.
A classic folk rule is to plant potatoes on St. Patrick’s Day (March 17th). This works reasonably well for central parts of the state, but always check your local frost dates first.
Understanding Your Virginia Growing Zone
Your USDA Plant Hardiness Zone is your best guide for precise timing. Virginia spans zones 5b in the mountains to 8a on the coast.
* Zones 7a & 7b (Most of Piedmont & Coastal): Last frost is early to mid-April. Target March planting.
* Zone 6 (Valleys & Foothills): Last frost is mid to late April. Target early April planting.
* Zone 5b (Mountains): Last frost can be in May. Target late April or early May planting.
You can find your exact zone by entering your zip code into the USDA website. This takes the guesswork out of the equation.
Choosing the Right Potato Varieties for Virginia
Selecting varieties suited to Virginia’s climate and your taste preferences is key. Potatoes are catagorized by how long they take to mature.
Early Season (70-90 days):
These are great for getting a quick harvest and avoiding some summer pests.
* Yukon Gold: A versatile, yellow-fleshed favorite.
* Red Norland: Smooth red skin, excellent for boiling.
* Irish Cobbler: An heirloom variety with fantastic flavor.
Mid-Season (90-110 days):
These are reliable producers and store well.
* Kennebec: A high-yielding, all-purpose white potato.
* Purple Majesty: Stunning purple flesh packed with antioxidants.
Late Season (110-135 days):
Perfect for storage and fall harvests.
* Russet Burbank: Classic baking potato.
* Katahdin: Disease resistant and great for storage.
Consider planting a mix of early and mid-season types for a continous harvest through the summer.
Step-by-Step Planting Guide
Once your timing is right, follow these steps for success.
1. Preparing Seed Potatoes
Never plant potatoes from the grocery store; they are often treated to prevent sprouting. Buy certified disease-free seed potatoes from a garden center.
* Chitting (Pre-sprouting): Place seed potatoes in a bright, cool spot for 2-4 weeks before planting. This encourages strong sprouts.
* Cutting: Larger seed potatoes can be cut into pieces, each with at least 1-2 “eyes” or sprouts. Do this 1-2 days before planting to let the cuts callus over.
2. Selecting and Preparing the Site
Potatoes need full sun—at least 6 hours daily. The soil is crucial.
* Soil Type: They prefer loose, well-draining soil. Heavy clay is problematic; amend it with compost.
* Soil pH: Aim for a slightly acidic pH of 5.0 to 6.5.
* Preparation: Loosen the soil deeply (about 12 inches) and mix in several inches of compost or aged manure. Avoid fresh manure, as it can cause scab disease.
3. The Planting Process
You can plant in traditional rows, raised beds, or even containers.
1. Dig a trench about 6 inches deep.
2. Place seed potato pieces cut-side down, with eyes facing up, 12 inches apart.
3. Space rows about 2-3 feet apart.
4. Cover the seed pieces with 4 inches of soil.
5. Water the area thoroughly.
As the plants grow, you’ll “hill” soil around them, which we’ll cover next.
Caring for Your Potato Plants
Consistent care after planting ensures healthy plants and a bigger yield.
Watering and Hilling
* Watering: Potatoes need 1-2 inches of water per week. Keep soil consistently moist but not soggy. Inconsistent watering leads to misshapen tubers.
* Hilling: When plants are 6-8 inches tall, mound soil around the base, leaving just the top few leaves exposed. Repeat this every few weeks. Hilling protects tubers from sunlight (which turns them green and toxic) and encourages more potato formation.
Fertilizing and Pest Management
* Fertilizer: Use a balanced, low-nitrogen fertilizer at planting. Too much nitrogen gives you lots of leaves and few potatoes. A side dressing of compost when hilling is beneficial.
* Common Pests: Watch for Colorado potato beetles and aphids. Hand-pick beetles and use a strong spray of water for aphids. Crop rotation is essential each year to prevent disease buildup.
Harvesting and Storing Your Bounty
Harvest time depends on the potato type you planted.
* New Potatoes: You can gently steal a few small, tender potatoes about 2-3 weeks after the plants finish flowering.
* Mature Potatoes: For full-sized, storage-ready potatoes, wait until the plant vines have completely yellowed and died back. Use a garden fork to carefully dig up your harvest, starting from the outer edge of the hill.
After digging, let potatoes cure in a dark, well-ventilated place for 1-2 weeks. This toughens their skin for storage. Then, store them in a cool, humid, and completely dark location—ideal conditions are around 40°F with high humidity. A basement or root cellar often works well.
FAQs: Virginia Potato Planting
Can I plant potatoes in the fall in Virginia?
In some milder parts of Virginia (zones 7 and 8), you can plant a second crop in late summer (early August) for a fall harvest. The trick is ensuring they mature before the first hard freeze.
What if my potato plants get hit by a late frost?
Potato foliage is sensitive to frost. If a late frost is forcasted, cover young plants with row cover or an old sheet. If the tops get burned back, the plant will often regrow from the underground tubers, though it may set back your harvest.
Can I grow potatoes in containers?
Absolutely! Use a large container (like a 15-gallon pot) with excellent drainage. Fill with a potting mix and compost, and follow the same planting and hilling steps. Container growing is ideal for small spaces and helps avoid soil-borne diseases.
Why are my potato leaves turning yellow?
Yellowing leaves at the end of the season is normal as the plant matures. Yellowing early can signal overwatering, a nutrient deficiency, or a disease like early blight. Ensure good drainage and review your watering habits.
How do I prevent green potatoes?
Green potatoes are caused by exposure to light. Always hill your potatoes adequately during the growing season and store harvested potatoes in utter darkness. Never eat green potato skin, as it contains solanine, which can be harmful.
Getting your planting time right is the foundation for a succesful potato crop. By following these regional guidelines and tips, you’ll be on your way to enjoying homegrown potatoes from your Virginia garden. Remember to rotate your potato patch to a different area of the garden next year to keep your soil healthy and productive.