Squash and cucumbers require only 2 to 3 weeks to grow to an ideal size. Members of the cabbage and lettuce families need 4 to 5 weeks. Flowering annuals also vary in the time required to produce a size suitable for transplanting. Much depends on local growing conditions. It is important to keep a garden notebook and record seeding dates, length of time to germinate and time required to reach transplant size.
Seedlings are ready to transplant when they have the first set of true leaves.
Planting and growing information for vegetables. Soil temperature is important. Cool soil retards germination. Warm the soil to about 75 o if possible until seedlings have emerged above the soil surface. Provide an air temperature of 70 o to 75 o during the day and night temperature of at least 60 o to 65 o .