Stratify for 30-60 days. Sow in a container, cover with a plastic bag and refrigerate, or mix seed with damp clean sand or vermiculite, bag, and refrigerate at 35-40F. Check often for germination and maintain a lightly moist medium. Transplant any seedlings as they germinate. After the chill period, sow into soilless media and keep at 65-75F.
Direct sow in fall or wintersow into pots in the shade, covered with a thin layer of clean sand and a wire screen to keep out mice and voles. Check for water as needed.
PLACEMENT & CULTIVATION
Golden Alexander is best in rain gardens, native gardens, on the edges of woodland areas, and carpeting sun-dappled banks. It self-sows to create large drifts of sunny yellow flowers and shiny green foliage and flowers in spring. After bloom the seed heads turn a purplish hue and add interest to later summer gardens. Soils can be moisture holding or very well-drained, as long as spring rains are plentiful. A plant host to the caterpillars of the black swallowtail butterfly, they also support specialist bees, bumblebees and beneficial insects and provide nesting sites.
Keep moist but avoid saturated soils. Do not allow soil to dry out between waterings.
Mix in a couple of inches of compost prior to planting.
When to Cut for Bouquets:
Cut when about 3/4 of the florets have started to open.