Whatever the size of your garden, there is always space in it for summer bulbs. Most summer flowering bulbs are tropical in origin and need warmer conditions to thrive. Summer bulbs can be planted in beds, borders, containers, or hanging baskets. They come in different forms, including true bulbs, corms, rhizomes, and tubers.
Planting Calendar
A huge variety of different summer bulbs are available in store from August.
Prepare
Position
Most of the summer bulbs prefer a sunny position whether planted in pots or in the ground. Shelter and staking will protect taller flowering bulbs from wind damage.
Soil
When growing bulbs in pots plant in a free-draining mix without water storage crystals such as specialised Bulb mix or Kings Potting Mix. Good drainage is key as the bulbs may rot if the soil is too damp. When planting into the garden improve drainage by planting in raised beds, forking the soil and adding Gypsum Clay Breaker and Kings Potting Mix if needed to bulk the soil up.
Plant
In the Ground: Leave a space of 10-15cm between each bulb, and plant to a depth of 6-8cm. Water them in thoroughly after planting with Aquaticus Garden Booster added to the water. In Containers: Site your container or pot in full sun. Use specialised bulb mix or Kings Potting mix. In larger pots leave a space of 10-15cm between each bulb and plant to a depth of 6-8cm deep. Water them in thoroughly after planting with Aquaticus Garden Booster added to the water.
Care
Watering
Over the dry summer months, regular watering is essential. Potted bulbs can dry out very quickly and will need to be watered daily over the summer. Ensure that pots do not sit in water., this will cause the bulbs to root.
Feeding
Every three months, side-dress with Kings Bulb Food to assist the development of flower buds. Ensure the food does not come into direct contact with the bulbs. Monthly application of Aquaticus Garden Booster will ensure a strong health root system.
Spraying
Sap-sucking insects that are around in summer – like thrips and aphids can be a problem in dry weather. Use Bugtrol for control of these insects.
General Care
When using sprays, chemicals or fertilisers always read the label and follow the instructions. Apply sprays in the evening to avoid harming beneficial insects.
Expert Tip
When cutting flowers to take indoors, remember that the bulb collects energy through the leaves for the following year's flowers. For this reason, leave one third of the plant when removing flowers. Pick flowers as the buds are just beginning to open.
Tip
If not planting straight away, store the bulbs/corms in a cool, dry, airy place to keep them in good condition. A paper or mesh bag is the ideal thing for storage.
Frequently Asked Questions
What are summer bulbs?
Summer bulbs are plants that grow from bulbs, corms, tubers, or rhizomes and bloom during the summer months. Examples include dahlias, lilies, and gladioli.
When should I plant summer bulbs?
Plant summer bulbs in spring, after the last frost has passed and the soil has warmed up. This is typically around September to November.
How often should I water summer bulbs?
Over the dry summer months, regular watering is essential. Potted bulbs can dry out very quickly and will need to be watered daily over the summer. Ensure that pots do not sit in water., this will cause the bulbs to root.
How deep should I plant summer bulbs?
The planting depth varies depending on the bulb type. As a general rule, plant bulbs at a depth of two to three times their height.
How do I prevent pests and diseases in summer bulbs?
Ensure good air circulation, avoid overwatering, and inspect plants regularly for signs of pests like aphids or diseases like fungal infections. Use appropriate treatments if necessary.
