First season
Flowering generally begins in the same growing season in which the seed was sown, when transplanted in spring.
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How to Grow Scarlet Painted-cup (Castilleja coccinea) from Seed
Although a generalist hemiparasite, the choice of host plant makes a substantial difference when growing in containers.
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Germinating Passionflower (Passiflora incarnata, Maypop) Is Easy and Quick
These seeds require no pretreatment, and germinate quickly when given hot conditions.