Guide to growing Gladioli (Gladiolus)
Members of the Gladiolus genus are half hardy or hardy bulbs that range in height from 30cm to 1.5 Metres.
They bear attractive flowers along upright stems and bloom from summer through to the start of autumn.
Some common names for gladiolus include Gladioli, Corn Flag and Sword Lily.
How to grow Gladioli
it is easiest to grow gladioli from bulbs; though members of the gladiolus genus can be grown from seed it is quite difficult and they will take at least three years to germinate.
The gladioli bulbs should be buried at a depth of 10 to 15cm and a spacing of 10cm (small Gladiolus species) to 15cm (larger gladiolus varieties). Plant the bulbs every two weeks throughout the winter; this will produce a prolonged bloom of your gladiolas. Ideally Gladioli will grow in a sunny area that has a rich soil that is slightly acidic to neutral in pH.
If you do want to grow from seed, then sow them indoors first. Sow gladioli seeds at a depth of 3mm; it should take them about three to six weeks to germinate at a temperature of 20 to 24 degrees centigrade. Transplant young gladioli seedlings about three weeks after the last chance of a frost.
Caring for Gladioli
It is fairly easy to look after Gladiolus species such as sword lily and gladioli. They should be watered regularly. Stake taller gladiolus varieties; especially if you have had to plant them shallowly. Gladioli should be fertilised three times a year; upon bud development; upon blooming and following blooming. If you require more Gladioli then propagate by planting the cormells that they produce.