Streptocarpus

Question

What fertilizers do they use.Flowering or winter and how can I keep downy mildew at bay. I am currently using Physan 20 when I feed them(once weekly)?

Answer 1

Fertilize with caution. A light (cut in half) application of a balanced fertilizer every few weeks during active growth. Flush the soil every so often to avoid excess fertilizer build up.

https://www.gardeningknowhow.com/houseplants/streptocarpus-plants/care-for-streptocarpus.htm

This link has information on the control of Downy Mildew
https://www.gardeningknowhow.com/plant-problems/disease/downy-mildew.htm