"Black Spots On My Gardenia" - Knowledgebase Question

Monroe, NC
Avatar for sddjrd
Question by sddjrd
September 27, 2004
I bought a variety of Gardenia from a local nursery. I cannot recall the name, but it was staked in a container and was suppossed to bloom white flowers. I put them in a container and put it on my front porch which gets a decent amount of sun. I used miracle gro potting soil and kept them sufficently watered but they never bloomed. The blooms would turn black and never open up. I tried treating them for bugs with Malathon 50. One died and the other is on the verge. They were about $45 each. The one that's still alive looks sad. What can I do?


Image
Answer from NGA
September 27, 2004
The most common gardenia is the G. jasminoides or cape jasmine. It will grow in your gardening zone, given the proper care. Gardenias require a rich, very acid soil (pH 4.5 to 5.0). An abundance of moisture and high humidity is the most important factor in successful gardenia culture. Unfortunately, gardenia is often a disappointment to gardeners because it can be very, very demanding. For flower buds to form and thrive, night temperatures need to be between 60-65F. During the day, temperatures should be 70-75F. A very constant, even temperature is required or buds will drop. Bright light is essential, but avoid direct mid-day sun in the summer. Best of luck with your gardenia!

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )