Seed is the usual method of starting new Baptisia plants. Collect seed when the pods darken and begin to split. Inspect seed for small holes made by weevils and discard damaged seeds. Seed that is sown fresh will germinate most reliably and can be sown directly into flats or an outside nursery bed.
Sow Baptisia australis seeds about 1/2″ deep, outdoors in late fall or spring. If started indoors (or outdoors in spring), the seeds need to be scarified (rubbed between sandpaper). Plant scarified seeds about 1/4″ deep. It helps germination if bottom heat of 75F is provided until seedlings emerge.
Once planted, Baptisia plants don't like to be moved. Their roots can grow up to 12 feet (3.5 meters) deep and a single clump can expand to 3 or 4 feet (1 m.) wide. ... Baptisia plants need plenty of sun and once established, are extremely drought tolerant.
This is a deciduous plant. This shrub, which often forms thickets on riverbanks and islands, can be weedy or invasive in the northeast. Another False Indigo (A.. . . . .364011235080!]0000000000000009783314144591!]