Fragaria vesca. Yellow Wonder Alpine strawberry seeds are a bit easier to start than some others. Start the seeds indoors as early as December, and transplant outdoors one week after your last average frost date. That's around the first or second week in April. With this kind of head start, the plants will produce fruit in the first year. Yellow Wonder has the lovely oblong shape of alpine types, but with yellow skin and flesh and incredible sweetness. The plants are low growing, but very productive, even in containers. The seeds can also be sown later in the year, but plan on harvesting berries from the second year of growth forward.
Matures in 150 days. (Open-pollinated seeds)
Strawberries are hardy perennials, but the plants become less robust after about three years. Propagate by cuttings and runners. Follow along with this handy How to Grow Strawberries guide and grow some sweetness.
When I Get My Seedling Home
Keep seedlings under very bright light to prevent legginess. Artificial lights are ideal, but a bright (ideally, south-facing) room will work for the short term. You may have to pot on seedlings more than once before they go out to allow for root growth. This is done by transplanting them into a slightly larger container with enough additional soil to keep the container mostly full. Keep the soil moist by daily watering and allow for free drainage so the plants are never sitting water.
Do not transplant outside until night time temperatures are steadily 10°C (50°F) or warmer. This may mean keeping seedlings indoors for up to a month. The plants should not require any fertilizer until transplant time.
Space transplants 60cm (24″) apart in rows 90-120cm (36-48″) apart. Ever-bearing varieties (such as ours) tend to produce fewer runners, and may produce more fruit if the runners are removed. In the first year of growth, it may be preferable to encourage runners, and let them fill in the spaces between transplants with new offspring plants.
Grow strawberries in a well-drained, sandy loam that has been generously dug with organic matter such as finished compost or well-rotted manure. Dig ¼ cup complete organic fertilizer into the soil beneath each transplant. Keep soil moist, but not soggy. A mulch of straw around plants may help prevent the soil from drying out.
These little plants respond strongly to nearby plants. Couple them with beans, borage, garlic, lettuce, onions, peas, spinach, and thyme. Avoid Brassicas and fennel.