Question From: Whitby, Ontario, Canada
Q: Our complete bed of Impatiens was destroyed by the Downy Mildew this year. How can I ensure that the plants will survive in the same soil next year?
Sadly, you can't. The spores may live in the soil for 5 years or more, so it's a crap shoot. I'm loving my begonia 'Bigs'. Best And Happy Yardening, Nancy.