Staking and reblooming delphiniums
Delphiniums grow really tall and become top-heavy when in blossom. Because the flower stems are hollow and brittle, they tend to topple over in the slightest breeze.
Avoid damage to your prized blossoms by staking the stalks of these plants in mid-summer. Use tall pine stakes and tie the stalks to the stakes with plant tape because they grow.
Do not make the sticks too tight, and make an effort to use a stake that is tall enough to also support the flower spike.
Reblooming your plants
The moment the blooms are spent, cut them straight back to ground level. Look out for new growth and begin the staking procedure for new stalks around again when it evolves.
Water the plants regularly and mulch to keep the soil moist. Feed the plants with a liquid fertiliser every 2 — 3 months.