The "Giant Himalayan Cowslip" bears large rounded leaves and stout stems carrying immense heads of fragrant flowers which are usually yellow but very occasionally red or orange. This is almost certainly the biggest primula there is and in a damp soil will make impressive, self-seeding clumps!
Primula seeds may be sown at any time onto a loam-based compost, barely cover so that around 50% are still visible. Best germination temperatures are between 10 and 15 degrees C. (e.g. a cool, northerly window sill) PLEASE NOTE: Temperatures exceeding 15 C can prevent germination, and above 20 C expect very little germination as most seeds will go dormant as a protective measure. Germination takes between 3 to 6 weeks, sometimes taking much longer.
Seeds / gram:500 (Approx)