The garden delphinium Delphinium cultorum is one of the most spectacular flowering species in our gardens.Tall, dense spikes of blue, white, purple or pink color appear in June, and if properly handled, though smaller, again in September.
Larkspur care is not laborious.In order to obtain the best decorative effect, the plants should be provided with optimal soil moisture, especially during the most intensive growth period, in May and June.
In the same period, plants are fed. The best solution is soluble multi-component fertilizers in the amount of 40-50 g per m².Regular, annual fertilization extends the life of these perennials and promotes their flowering.
Remember that moisture is conducive to the feeding of snails. They are protected against them by special collars mounted around young plants or by chemicals.Huge spikes, reaching 2 meters in height, can be very heavy.In places exposed to strong winds, they often tip or even break.
Larkspur seeds
For this reason, it is often necessary to support the inflorescences.For this purpose, special wire structures are mounted above the plants in spring (the same structures can be used for the cultivation of dahlias and gladioli) or the inflorescences are attached to the stakes.After flowering, shoots are shortened to a height of about 20 centimeters.Plants then create new flowering shoots. In late fall or early spring, the shoots are trimmed close to the ground.