BulbPotato
Potato Cal White
Cal White is a newer hybrid potato that delivers everything a gardener wants: large white tubers with creamy white flesh, reliable performance across zones 3-10, and a harvest window of just 100-109 days. This variety matures faster than many similar white potatoes while maintaining excellent flavor, and it brings genuine disease resistance to the garden. Plant it in full sun with 12 inches of spacing between plants, and you'll have a dependable crop that handles regional challenges well.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-10
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Loose Loam, High Organic Matter
Growth Stats
36 in
Height
TypeBush
Spacing
12
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-10
Size
36in H x ?in W
Growth
—
Care
Moderate
Hover over chart points for details
Highlights
Cal White arrives as a hybrid that cuts weeks off the typical white potato timeline without sacrificing quality or flavor. The large, white-skinned tubers develop creamy white flesh that tastes genuinely good, not just serviceable. What sets this apart is its proven resistance to Early Blight and Late Blight, two diseases that wreck potato crops across the country, combined with resistance to Phytophthora infestans. For a gardener tired of losing potatoes to fungal pressure, this variety offers a real breakthrough.
Common Uses
Cal White works beautifully in any dish that calls for a reliable all-purpose white potato. The creamy texture and mild flavor make it excellent for mashed potatoes, potato salads, soups, and gratins where you want the potato's character to shine without competing flavors. Roast these tubers whole or halved, and their size means fewer pieces to manage on sheet pans. They also store well for winter use, extending your harvest into months when fresh potatoes aren't available.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Transplant Outdoors
Cal White is grown from seed potatoes, not transplants. Plant whole small seed potatoes or cut larger ones into pieces with at least two eyes each. Plant 4-6 inches deep in loose soil after the last frost date when soil temperature reaches at least 45°F. Deeper planting in loose soil gives tubers room to develop without hitting compacted earth.
Direct Sow
Direct plant seed potatoes outdoors after the last frost date. Plant 4-6 inches deep and 12 inches apart in rows spaced 36 inches apart. Soil should be loose and well-draining; amend with compost before planting.
Harvesting
Cal White reaches maturity in 100-109 days, typically mid-summer to early fall depending on your planting date. Begin harvesting when the foliage yellows and dies back, which signals that tubers have finished sizing. Carefully dig around the base of each plant with a garden fork, working outward to avoid puncturing the delicate tubers. For storage, leave harvested potatoes in a cool, dark place for 7-10 days to cure before moving them to long-term storage.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Solanum tuberosum
Family
Solanaceae
Genus
Solanum
Growth Habit
Bush
Native Status
L48 (I)HI (I)PR (I)CAN (W)