Growing Purple Potatoes: Is It Worth the Effort for Home Gardeners?

Have you ever wondered about those vibrant purple potatoes popping up in grocery stores and farmers’ markets across America? This article dives into the world of purple potatoes, exploring their history in the U.S., popular varieties, and cultivation techniques. We’ll also cover how these colorful tubers are making their way into American kitchens, with tips on cooking, flavor pairings, and storage. Whether you’re a curious gardener or an adventurous cook, discover how purple potatoes can add a splash of color and flavor to your garden and plate.

History and Cultural Significance

Purple potatoes originated in South America, particularly in the Andean regions of Peru and Bolivia. They made their way to the United States in the mid-1980s and have since gained popularity among gardeners and food enthusiasts.

In the U.S., purple potatoes have found a special place in:

• Pacific Northwest: Known for embracing unique produce, this region has been quick to adopt purple potatoes in local cuisine.
• Northeast: Particularly in states like Maine, where potato cultivation is significant, purple varieties have become a trendy crop.
• California: The state’s diverse culinary scene has embraced purple potatoes in farm-to-table restaurants and farmers’ markets.

Popular Purple Potato Varieties

Here are some of the most popular purple potato varieties grown in the United States:

Variety Name	Characteristics	Best Uses
All Blue	Deep purple skin and flesh	Mashing, roasting
Purple Majesty	Dark purple skin, violet flesh	Baking, frying
Adirondack Blue	Blue-purple skin and flesh	Boiling, salads
Magic Molly	Deep purple skin and flesh	Roasting, chips
Purple Viking	Purple skin with pink splashes, white flesh	All-purpose

Growing Purple Potatoes

Growing purple potatoes is similar to cultivating regular potatoes, but there are some key points to keep in mind for successful purple potato growing:

Planting purple potatoes:

1. Plant seed potatoes in spring when soil temperatures consistently reach 45-50°F (7-10°C).
2. Planting depth should be about 3-4 inches deep.
3. Space plants 10-15 inches apart, with rows 18-30 inches apart.

Soil requirements:

• Purple potatoes prefer well-draining, slightly acidic soil with a pH of 5.8 to 6.5.
• Prepare the soil by adding compost or a fertilizer rich in potassium and phosphorus.

Sunlight needs:

1. Ensure plants receive full sun, at least 6-8 hours daily.
2. Purple potatoes grow best in moderate temperatures and may struggle when it’s consistently above 80°F.

Watering and care:

• Keep soil consistently moist but not waterlogged.
• After flowering, reduce watering by about half to encourage tuber development.

Harvesting purple potatoes:

1. Most varieties are ready to harvest 90-120 days after planting.
2. Harvest when foliage and vines have died back.

Tips for growing purple potatoes:

• Consider using the “mulch planting” method: place potatoes on loosened soil and cover with a thick layer of mulch.
• Purple potato types like ‘All Blue’, ‘Adirondack Blue’, and ‘Purple Majesty’ are popular choices for home gardens.
• Some gardeners use the Back to Eden method, covering potatoes with 12 inches of wood chips.

By following these guidelines, you can successfully grow purple potatoes in your home garden and enjoy their unique color and flavor at harvest time.

Storage Tips for Purple Potatoes

To make the most of your purple potatoes, follow these storage:

1. Store in a cool, dark place (around 45-50°F or 7-10°C) for up to 2-3 weeks.
2. Avoid refrigeration, as it can alter the potato’s flavor and texture, and may lead to increased sugar content.
3. Keep purple skin potatoes in a paper bag or cardboard box to allow air circulation and prevent moisture buildup.
4. Don’t wash potatoes before storage, as excess moisture can promote spoilage.

Flavor Pairings

Purple potatoes have a slightly nuttier, earthier flavor compared to regular potatoes. They pair well with:

• Herbs: Rosemary, thyme, sage
• Proteins: Chicken, pork, salmon
• Other vegetables: Carrots, onions, garlic
• Dairy: Cream, butter, cheese (especially goat cheese)

Culinary Uses Purple Potatoes

Preparing Purple Potatoes for Cooking

1. Wash thoroughly before use, but only right before cooking to prevent moisture-related spoilage.
2. To preserve the vibrant color, consider leaving the skin on when cooking purple potatoes.
3. When cutting, use a stainless steel knife to minimize discoloration.

Cooking Methods for Purple Potatoes

Purple potatoes can be used in virtually any dish that calls for regular potatoes. Here are some popular American dishes adapted for purple potatoes:

1. Purple potatoes mashed (a colorful twist on the classic Thanksgiving side dish):

• Boil until tender, then mash with butter and milk for a colorful side dish.
• Add roasted garlic or herbs for extra flavor.

2. Purple potatoes baked:

• Pierce skin and bake at 400°F (200°C) for about 45 minutes or until tender.
• Top with sour cream and chives for a classic baked potato experience.

3. Purple potatoes french fries (a fun and visually striking alternative to regular fries):

• Cut into thin strips, toss with oil and seasonings, then bake or air fry for a healthier alternative to traditional fries.

4. Roasted purple potatoes wedges (a simple yet elegant side dish for any meal):

• Cut into wedges, toss with olive oil and herbs, then roast at 425°F (220°C) for 25-30 minutes.

5. Purple Potato Salad (perfect for summer picnics and barbecues): 

• Boil 2 pounds of cubed purple potatoes until tender, about 15 minutes. 
• Cool potatoes, then mix with 1/2 cup mayonnaise, 2 tablespoons Dijon mustard, 1/4 cup chopped red onion, and 2 chopped celery stalks. 
• Add 2 tablespoons apple cider vinegar, salt, and pepper to taste.
• Chill for at least 1 hour before serving. 
• Garnish with chopped fresh dill or chives.

Freezing Purple Potatoes

While fresh is best, you can freeze purple potatoes:

• Parboil for 3-5 minutes.
• Cool in an ice bath.
• Pat dry and freeze in airtight containers for up to 10-12 months.

Tips for Preserving Color

1. Add a splash of vinegar or lemon juice to the cooking water to help maintain the vibrant purple color.
2. Avoid overcooking, as this can cause the potatoes to lose their distinctive hue.

By following these storage and preparation tips, you can ensure that your purple potatoes maintain their unique color, flavor, and texture, whether you’re making purple potatoes mashed, baked, or as crispy french fries.

By incorporating purple potatoes into your garden and kitchen, you’re not only adding a pop of color to your meals but also embracing a piece of agricultural diversity. Whether you’re growing purple potatoes in your backyard or experimenting with new recipes, these colorful tubers are sure to bring excitement to your culinary adventures.

Frequently Asked Questions (FAQ)