Imagine pulling up a handful of fresh, earthy potatoes from your own backyard soil. There’s nothing quite like it—the satisfaction of growing your own food, especially something as versatile as potatoes.
If you’re new to gardening and wondering where to start, planting potatoes in the ground is one of the most rewarding projects for beginners. It’s forgiving, productive, and doesn’t require fancy equipment. Yet many first-timers feel overwhelmed by timing, soil prep, and that mysterious “hilling” step.
Don’t worry. I’ll walk you through everything in simple, practical terms so you can go from seed potato to harvest with confidence.
Quick Answer: How to Plant Potatoes in the Ground
Plant certified seed potatoes in early spring when soil reaches about 45–55°F. Dig a 4–6 inch deep trench, space pieces 10–12 inches apart with eyes facing up, cover with 3–4 inches of soil, and hill up as plants grow. Expect harvest in 10–20 weeks depending on variety.
Why Growing Potatoes Is Worth It
Potatoes are incredibly productive. One pound of seed potatoes can yield 4–10 pounds or more at harvest. They store well, taste far better than store-bought, and come in endless varieties—fingerlings, reds, russets, blues, you name it.
Plus, they’re a cool-season crop that fits nicely into small spaces or raised beds. Once you learn how to plant potatoes in the ground the right way, you’ll look forward to it every year.
Choosing the Right Seed Potatoes
Always start with certified seed potatoes from a garden center or reputable supplier. Grocery store potatoes often get treated with sprout inhibitors and may carry diseases.
Look for firm, plump tubers with visible “eyes.” Avoid any that are soft, shriveled, or moldy.
Popular beginner varieties:
- Early season: Yukon Gold, Red Pontiac (harvest in 70–90 days)
- Mid-season: Kennebec, All Blue
- Late/main crop: Russet Burbank for bigger yields
Smaller seed potatoes can go in whole. Larger ones should be cut into pieces with 2–3 eyes each. Let cut pieces dry for a day or two so the cut side calluses over—this helps prevent rot.
When to Plant Potatoes
Timing is everything. Plant potatoes in the ground 2–4 weeks before your average last frost date, once soil temperature hits at least 45°F (ideally 55°F daytime).
In cooler northern areas, that’s often late March to early May. In warmer southern regions, you might plant in late fall or winter for a spring harvest.
Pro tip: Use a soil thermometer. If the ground feels cold and wet, wait. Planting too early in soggy soil is a common beginner mistake that leads to rotting tubers.
Preparing Your Planting Site
Potatoes love loose, well-draining soil rich in organic matter. Heavy clay or compacted ground leads to misshapen potatoes, so amend generously with compost.
Ideal conditions:
- Full sun (at least 6–8 hours)
- Slightly acidic soil (pH 5.8–6.5)
- Good drainage to prevent rot
- Avoid areas where tomatoes, peppers, or eggplants grew recently (to reduce disease risk)
Work the soil to about 8–12 inches deep. Mix in compost or well-rotted manure. A light application of balanced organic fertilizer helps too, but go easy on nitrogen—too much produces lush leaves but fewer potatoes.
Step-by-Step: How to Plant Potatoes in the Ground
Here’s the classic trench method that works beautifully for in-ground planting.
- Dig your trenches. Make rows 30–36 inches apart. Dig trenches 4–6 inches deep and about 6–8 inches wide.
- Place the seed potatoes. Set pieces 10–12 inches apart in the trench. Position them with eyes (or sprouts) facing up and cut side down.
- Cover lightly. Add 3–4 inches of soil over the potatoes. Don’t fill the trench completely yet.
- Water gently. Give them a good drink to settle the soil, but don’t soak.
That’s it for planting day! Your potatoes will start emerging in 2–4 weeks.
The Magic of Hilling: Why and How to Do It
As your potato plants grow to about 6–8 inches tall, it’s time to hill. Pull soil (or a mix of soil and compost) up around the stems, covering the lower leaves but leaving the top few inches exposed.
Repeat this every couple of weeks as the plants grow, building up a nice mound. You can also use straw or leaves for the top layers.
Why hill?
- New potatoes form along the buried stems
- Prevents tubers from turning green (and toxic) from sun exposure
- Helps with drainage and weed control
This step feels like extra work, but it’s one of the keys to a bigger harvest.
Watering and Ongoing Care
Potatoes need consistent moisture—about 1–2 inches of water per week. Keep soil evenly damp but never waterlogged. Inconsistent watering can cause cracked or hollow tubers.
Mulch around plants with straw to retain moisture and suppress weeds. Keep the bed weeded, especially early on.
Fertilize lightly midway through the season with a low-nitrogen option if growth seems slow.
Common Beginner Mistakes to Avoid
I’ve made plenty of these myself over the years:
- Planting in cold, wet soil → rot city
- Using grocery store potatoes → poor or no sprouting
- Not spacing properly → small, crowded tubers
- Forgetting to hill → green potatoes
- Over-fertilizing with nitrogen → all leaves, no spuds
Another big one: planting too deep initially. A shallow start with gradual hilling works better.
Troubleshooting Common Potato Problems
Yellow leaves or wilting: Could be overwatering, underwatering, or nutrient issues. Check soil moisture first.
Pests like Colorado potato beetles: Hand-pick them off (wear gloves—they’re gross). Neem oil can help.
Scab or disease: Choose resistant varieties and rotate crops. Good soil drainage prevents many issues.
Small harvest: Often due to insufficient hilling, poor soil, or drought stress.
If plants get hit by a light frost after emerging, they’ll usually bounce back with new shoots, though the harvest might be a bit smaller.
When and How to Harvest Potatoes
Early varieties are ready when they flower. For main crops, wait until foliage starts yellowing and dying back.
Gently dig around the edges of the mound with a fork or hands. Avoid stabbing the tubers. Let harvested potatoes dry on the surface for a few hours, then store in a cool, dark place.
New potatoes (small ones) can be harvested earlier by carefully reaching into the hill without disturbing the whole plant.
Storing Your Homegrown Potatoes
Cure them for 1–2 weeks at 50–60°F with good airflow. Then store in a dark, cool (around 40°F), humid spot like a root cellar or garage. They’ll keep for months.
Avoid refrigerating fresh potatoes—it turns starch to sugar and affects taste.
Expanding Your Potato Growing Adventure
Once you master planting potatoes in the ground, try containers, grow bags, or straw bale methods for fun. Or experiment with different varieties each season.
Companion planting with beans or marigolds can help with pests. And saving your own seed potatoes is possible if you keep them disease-free, though many gardeners buy fresh certified stock each year for best results.
FAQs About How to Plant Potatoes in the Ground
How deep do you plant potatoes in the ground? Plant seed pieces 4–6 inches deep initially, then hill up gradually as plants grow.
Can I plant potatoes from the grocery store? It’s not recommended. They may not sprout well and can introduce diseases.
How far apart should potatoes be planted? Space them 10–12 inches apart in rows 30–36 inches apart for good yields.
Do potatoes need full sun? Yes—at least 6–8 hours of direct sunlight daily for best production.
How long do potatoes take to grow? Early varieties: 70–90 days. Main crops: 100–130+ days from planting.
What if my potatoes turn green? Green parts contain solanine and are toxic—cut them off generously or discard the tuber.
Can I grow potatoes in raised beds? Absolutely! The trench and hilling method works great in raised beds with loose soil.
There you have it—your complete roadmap for successfully planting potatoes in the ground. Whether you’re working with a backyard plot or a few raised beds, this process is straightforward once you get the rhythm.
The first time you dig up those homegrown beauties and cook them for dinner, you’ll be hooked. There’s real pride in growing something so fundamental to so many meals.
Ready to get your hands dirty? Grab some seed potatoes, pick your spot, and give it a try this season. Your future self (and your taste buds) will thank you.
Drop a comment below with your favorite potato variety or any questions—I love hearing from fellow gardeners. Happy planting!