Shanin Wild Petunia Seeds

Heirloom Shanin Wild Petunia seeds should be started indoors 10-12 weeks before the last expected frost. They are very tiny, so it's better to mix them with dry sand before sowing to ensure an even distribution across the tray instead of bunching. Sow heirloom Petunia seeds only on the surface and gently press them down. Ensure Petunia flower seeds have access to direct light, as it triggers germination. Planting them is the main cause of poor germination. Hold the tray at 65-75°F and germination occurs within 7-14 days. A heat mat makes a real difference here — germination becomes faster and more consistent.

Full sun is non-negotiable, and it needs to be at least 6 hours a day. If  less, the internodes stretch out, the blooms become poor. Drainage is important, and Petunia Violacea seeds handle dry periods well. Avoid overwatering, as waterlogged container mix leads to root rot. Water only when the top inch of soil feels dry. This is one of the bulk Petunia seeds that once established, can handle the summer heat without much complaint.

Space Shanin Wild Petunia plants 12 inches apart. Any closer and you'll get fungal spots from poor air circulation during the midsummer humidity. Remove spent flowers regularly to prolong the blooming season, otherwise it slows the development of new buds significantly. Feed monthly with a balanced slow-release fertilizer. If the plants get leggy in midsummer, which definitely happens, trim them back by a third. They'll bounce back in two weeks and often produce an even stronger flush of flowers than the first time.