Requires a long growing season and produces best in cool weather. Do not compost the roots too much, as it is shallow rooted and susceptible to diseases in early stages. Needs adequate calcium. As sprouts begin to touch, remove lower leaves carefully and pinch tops to encourage side growth. Harvest sprouts from the bottom up. Heavy plants may need staking towards end of growing season. The plant may get tall and top heavy — staking may be needed.
Try to plant in a location that enjoys full sun and remember to water moderately. Rubine is generally regarded as a hardy plant, so this plant will grow or become dormant during the winter. Rubine needs a loamy soil with a ph of 5.9 to 6.1 (weakly acidic soil).By our calculations, you should look at sowing Rubine about 21 days before your last frost date.
Time planting to mature around fall frost which improves flavor and vitamins. Transplant out in late spring and plan on harvesting after the first frost in fall.
Rubine is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.