Midnight Mix is the result of an accidental cross between the 1794 Haida Ozette and Metchosin Farm’s own My-Chosen Purple potatoes. While we initially tried separating the new offspring into different varieties we found it impossible to be certain without cutting each tuber open. After 2 years of growing out these new crosses, the deep purple/white tubers just kept getting more diverse and interesting, and at 6 different types identified and counting we finally gave up and named them all.

Grow these potatoes and enjoy a constellation of dark purple/black skins and interiors of speckled white/purple to pure solid purple.

 These potatoes are ideal for boiling, and the best choice for potato salad.

 Companion plants like beans, corn, and marigolds.

Where Can You Grow Midnight Mix Potatoes

This variety thrives in well-draining soil with full sun and is suitable for Zones 4-9. It performs well in traditional garden beds, raised beds, and containers, making it versatile for a variety of gardening setups.

History and Historical Uses

Midnight Mix was developed in 2025 by Metchosin Farm through their Potato Project Breeding Program. It is the result of an accidental cross between the 1794 Haida Ozette and Metchosin Farm’s own My-Chosen Purple potatoes.

Canadian Zone Information

• Zones 8-9: Plant seed potatoes in early spring for a summer harvest.

• Zones 5-7: Plant in mid-spring after the ground has warmed, harvesting in late summer or early autumn.

• Zone 4: Start planting as soon as the soil is workable in spring and harvest before the first frost.

How to Grow Midnight Mix Potatoes

1. Prepare the Soil: Ensure well-drained, fertile soil. Add compost or organic matter before planting.
2. Planting: Cut seed potatoes into pieces with at least one eye per piece. Plant 10-15cm (4-6in) deep and 30-45cm (12-18in) apart in rows. Space rows 60cm (24in) apart.
3. Hilling: Mound soil around stems as the plants grow to protect tubers and encourage yields.
4. Watering: Keep soil consistently moist but not waterlogged.
5. Harvesting: Harvest when the foliage dies back or earlier for smaller, new potatoes.

How to Save Potato Seed Fruit

Potato seed fruit, or potato berries, can be saved to grow new plants. Follow these steps:

1. Harvest the Berries: Allow potato plants to produce and ripen their small green or purple seed fruit. Harvest when the berries are soft and fully mature.
2. Extract the Seeds: Slice the berries open and scoop out the seeds along with the surrounding gel.
3. Fermentation: Place the seeds and gel in a jar with a small amount of water. Let it sit uncovered at room temperature for 2-3 days, stirring daily to break up the gel.
4. Rinse and Dry: Rinse the seeds thoroughly, removing any remaining pulp. Spread the seeds on a clean towel or screen to dry completely.
5. Store: Store the dried seeds in an airtight container in a cool, dark place. Properly stored seeds remain viable for 2-5 years.

Note: Growing potatoes from true seed is more complex and often used by breeders to develop new varieties.

Certified Organic By

Islands Organics Producers Association (Cert#1962)