Growing Cool: Osteospermum Seedlings

Welcome to the Member Ideas area! This community feature is where our members can post their own ideas. These posts are unedited and not necessarily endorsed by the National Gardening Association.
Posted by @Joannabanana on
For strong stocky seedlings, grow cool. Some plants, like osteosperman, require a vernalization period to produce flower buds.

Most seedlings will benefit with a bright, cool environment after germination. They will be thicker stemmed and healthier. Osteospermum, aka Cape Daisy or African Daisy, produces flower buds with a few weeks of day temperatures around 65ºF or 18ºC and night temperatures around 45ºF or 7ºC. Vernalization is necessary for this plant to form flower buds. If you are buying bedding plants, choose a plant that has a few open blooms and numerous flower buds. It will be unlikely that it will develop additional flower buds.

There are a few exceptions with some of the newer varieties that are more heat tolerant, including Voltage™ Yellow.

Comments and discussion:
Thread Title Last Reply Replies
Starting seeds by chelle Mar 16, 2014 12:21 PM 19

Explore More:

Give a thumbs up
Member Login:

[ Join now ]

Today's site banner is by IrisLilli and is called "Poppies Galore"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.