This variety became popular across Britain and then Europe. Pansies and other members of the viola family, have their fair share of fungal pansy plant issues, including anthracnose, cercospora leaf spot, powdery mildew and botrytis blight. Pansies come in a wide assortment of colors and bi-colors, many with super cute face patterns on the petals. Many pansies stop blooming after a few seasons. Thin to one seedling per cell when they have two sets of leaves. However, like many plants that self seed, the new plants are not likely to look like the original parent plant. However, planting or growing pansies in soil temperatures under 45 °F (7 °C) can stunt the growth of your pansies so if you plan to grow your pansy seeds in the fall, ensure you protect your pansies in the winter or consider growing your pansies after the frost. Can pansies be grown indoors? Keep the seedlings in a shaded location until they develop their second set of leaves. It is a wholesale seed company that will sell to anyone. In 1839 the ‘Medora’ pansy, bred by William Thompson, was made available, marked by blocks of colour on the lower petals. If you allow seed heads to develop on your plants, they will self seed in the garden and you may get new pansy seedlings. A few seed pods will open without scattering their seeds like this one. If your pansies still aren’t blooming, even in the fall and spring, they may be at the end of their life cycle. Do pansies self seed? Pansies do best in soil temperatures between 45 and 65 °F (7 and 18 °C). Pansy Talk about irresistible! These short-lived, evergreen perennials will bloom in cool weather as long as the temperature stays above freezing. In the process of this diversification and popularity, the pansy’s petals became fuller, and the face or heart-shaped look of the modern bedding plant emerged. What you want to do is pick pods which are just about ready to open, and then contain the seeds as the pods dry and pop. Remove this cover as soon as the seeds start to sprout. Ruffled pansies are no more difficult to grow than conventional types, although you may need to visit a full-service nursery, rather than your local DIY store, to find these uncommon varieties. Common Pansy Problems. But, if you plant alot of pansies like me (20 flats or so a year), you can buy them in bulk. I got my seed this year from Hazzard’s Seed. They have seeds in packages of 250 and 1000. Most plants require a dark period to grow, do not leave lights on for 24 hours. Growing 6 to 8 inches tall, pansies are ideal for container gardens or mass plantings around trees or along garden walkways. When your pansies do bloom again, pinch off any new seed pods so the plant keeps growing. Pick lots of pods and chances are that some will be good and some won’t – sow many and it won’t matter. Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions. Pansy seed is on the pricey side too. After the seeds sprout, let the pansies grow for 6 weeks before transplanting them to larger containers. Starting pansies (Viola × wittrockiana) from seed is a more economical way to grow a wide variety of cultivars than purchasing individual plants.Pansies are easy to start indoors in either the spring or fall. Pansies need insects for pollination in order to produce seeds. Cover the seed flat with plastic film or moist burlap to hold moisture. Ruffled pansy varieties like 'Chalon Supreme' add a romantic finishing touch to Victorian and cottage gardens.