Black-eyed susan 'Hirta'
'Hirta' is a Black-eyed susan variety in the Rudbeckia genus with a scientific name of Rudbeckia fulgida. This variety is an Flower that typically grows as an Annual/Perennial, which is defined as a plant that can matures and completes its lifecycle over the course of one year or more. Normally grows to a mature height of 1.20 metres (3.90 feet).
Hirta Black-eyed susan is normally quite a low maintenance plant and is normally very easy to grow - great for beginner gardeners!
This plant info is provided by the myfolia gardener's wiki. All details about Black-eyed susan 'Hirta' have been kindly provided by our members.
How to grow Black-eyed susan 'Hirta'
Growing Hirta from seed
By our calculations, you should look at sowing Hirta about 42 days before your last frost date.
Black-eyed susan 'Hirta' information
How long does Hirta take to grow?
These estimates for how long Black-eyed susan 'Hirta' takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!
When should I sow Hirta?
Folia's when to plant Black-eyed susan 'Hirta' estimates are relative to your last frost date. Enter your frost dates and we'll calculate your sowing and planting dates for you!