How can I accelerate potato growth?
Written by
Olivia Mitchell
Reviewed by
Prof. Samuel Fitzgerald, Ph.D.Growing Potatoes Faster is vital for earlier/more abundant crops, usually on a short season. I've managed to harvest as much as three weeks earlier using simple techniques. Note, once again, that growing themFaster demands growing conditions/potato variety. Temperature, nutrition, and water retention are the requirements in both pots and gardens.
Pre-Sprouting
- Chitting process: Place seed potatoes eye-up in egg cartons
- Maintain 60-70°F (15-21°C) near bright windows for 4 weeks
- Result: 2-3 inch sprouts emerge before planting
Soil Warming
- Black plastic mulch: Absorbs heat raising soil temp 10-15°F (5-8°C)
- Apply 2 weeks before planting covering planting rows
- Cut X-shaped holes for sprouts to emerge through
Use a high-phosphorus fertilizer (possibly bone meal) at the time of planting. I use a 5-10-10 formula at the rate of 1/2 cup of fertilizer per plant. Phosphorus contributes to root development without causing excessive top growth. I work it into the trench before planting the seed potatoes. Avoid high-nitrogen fertilizers, as they can delay tuber production for weeks.
Keep the soil consistently moist at a depth of 1 to 1 1/2 inches (2.5-4 cm) of water per week. Apply with drip irrigation or wiggle-water with a soaker hose to distribute the moisture evenly. Perform the finger test by inserting one finger into the soil to the second knuckle. Never let it get dry when sprouting and in bloom.
Plant 12 in (30 cm) apart in pre-warmed soil. Use row covers on cool nights. For individual plants in early spring, use cloches; they catch the heat and protect from frost. Remove when temperatures reach above 75°F (24°C), as they can become excessively hot inside.
If you want quick yields from your potato crop, you can harvest new potatoes about three weeks after they have flowered. After harvesting, continue caring for the other types of potatoes that are still growing. Place any extra seed potatoes in a cool dark area: 40°F (4°C). Your seed potatoes will still be viable for accelerated planting next year.
Read the full article: How to Grow Potatoes: Essential Gardening Guide
