|Seedling temperature (°C)
Rudbeckia Goldstrum has been added to cart
Buy 3 and get a 10% discount
“Goldstrum” is one of the best perennial varieties on the market. We now offer a new seed technology, for faster and more uniform germination without a cold period. You can now enjoy these easier to grow, nice golden yellow black-centred coneflowers all summer long.
Plantation : Indoor: Sowing in January for spring production, flowering between mid to late June. Perennial that blooms from the first year. Sow 2 seeds per cell, in plates of 288, or larger cells. It is recommended to cover the seeds with vermiculite.Outdoor: Direct sowing in May or July to early September, flowering from late May to early June of the following year. Note: Vernalization: it is not essential, but beneficial, because flowering will be earlier by 2 to 3 weeks after a minimum of 10 weeks in the cold.
Soil : Indoor: Well-drained, porous seedlings soil to prevent overwatering.Outdoor: Adapt to all types of well-drained soils.
Culturals practices : Easy to grow, it will be grateful and fruitful as long as it is installed in full sun in fertile, deep, flexible, cool and well-drained soil. Particularly resistant to drought, so you will not hesitate to place it in a warm and sunny spot. It does not require much water. Coneflower is drought tolerant well and, with mulching, watering is not necessary after the first year of planting. In very dry periods, watering supports flowering. The plant does not bend in the wind and is not afraid of intense heat or occasional drought.Coneflower requires little care and flowers profusely all summer long. However, a few things should help you improve flowering. Remove wilted flowers as you go to encourage the appearance of new flowers. Adding fertilizer to flowering plants in spring stimulates flowering.It is recommended to divide the plant in spring or fall every 3-4 years to regenerate the plant.
cut flower, flower bed
July to September
|Sowing calendar - Biennials and Perrennials flowers