These are easy to grow in... more info. heterophylla, Antirrhinum kelloggii, Collinsia parryi, Clarkia spp., Cryptantha intermedia , Gilia australis, Gnaphalium californica , Malacothrix clevelandii, and Stephanomeria virgata, there was often substantial 'control' germination, but an additional 20-50% ger- Collinsia heterophylla Family: Plantaginaceae. Timing Direct sow in early spring when the soil is cool and when a light frost is still possible. This stunning flower grows wild throughout much of western North America, most often springing up in open woodland areas or pine forests. Add to Wishlist; Add to Compare; Write Review . Collinsia Heterophylla Seed Germination & Growing Guide. Collinsia heterophylla (Plantaginaceae) is a self-compatible, diploid annual endemic to the California Floristic Province (Newsom, 1929; Neese, 1993). Difficulty Easy. Collinsia Heterophylla Seed Germination & Growing Guide. Write Review . Starting Sow seeds 5mm (1/4”) deep. Epiphyllum Orchid Cactus Seed Germination & Growing Guide . The genus name, Collinsia, honors Philadelphia botanist Zaccheus Collins (1764-1831). Flowering occurs between March and June depending on latitude and elevation. Utilisez nos applications mobiles pour enregistrer vos observations avec votre smartphone ou votre tablette. Description Reviews Comments Collinsia Heterophylla Seeds or Chinese Houses seeds as they are more commonly known are very easy to germinate. Sow at three week intervals for a longer continuous bloom time. Current Reviews: 0 Add Your Review. Applications mobiles. Collinsia Heterophylla Seeds or Chinese Houses seeds as they are more commonly known are very easy to germinate. It is widely distributed and grows in shady places and on dry slopes (<1000 m). Season & Zone Exposure: Full sun to partial shade Zone: 1-10. This species was first classified in 1835 as Collinsia bicolor by Englishman George Bentham, one of the 19th century's foremost botanical experts. Collinsia heterophylla is an annual plant growing in shady places, 10 to 50 centimeters (4 to 20 in) in height. It can be found in most of California (other than desert regions) below about 1,000 meters (3,300 ft). system of collinsia heterophylla maria bolatito oyegbile ph.d. 2011 .