Repotting and watering
Agapanthus loves the sun so it's perfect as a container plant for the patio or balcony. If necessary, transplant the plant into a larger pot once you get it home. It's best not to use a very expensive pot because it will almost certainly break when you repot the plant again. This is because the roots swell up against the inside of the pot over time, so cracking the pot open is the only way to remove the plants without breaking the roots. Make sure there are holes in the bottom of the pot and that they don't become blocked; excess water must be able to drain off. Use a mixture of potting compost with a little sand and fertiliser. The sand will provide proper drainage. When repotting, make sure you leave enough room between the top of the soil and the rim of the pot. If you don't, it will be almost impossible to water when the growing roots start pushing the root ball upwards. After the growing season, you can let the compost dry out somewhat between waterings. Providing a smaller amount of water on a regular basis is better for the plant than giving it a large amount all at once. Agapanthus doesn't like having wet feet.
- Agapanthus prefers a sunny, sheltered location.
- Place your Agapanthus in a good sized pot with a drainage hole and fill with a mixture of potting compost and sand.
- Make sure the root ball is always slightly moist, especially during the growing season.
- Providing a small amount of fertiliser once a month encourages growth and flowering.
- Agapanthus is not entirely hardy and should be overwintered in a cool shed or cellar once outdoor temperatures drop to a few degrees below freezing.
The plants can be put outside again once the weather starts to warm up. This is a good time to remove any slimy stems and dried leaves.
The first flower stems should begin to appear in early June and the buds should open by the end of June.
Agapanthus 'Summer Love' is an evergreen variety that will flower all summer long. To keep the plant producing flowers, it's important to remove the old ones. Agapanthus will continue flowering until the first frost.
Like every flowering plant, Agapanthus needs nutrients to produce a profusion of flowers. During its vegetative growth period (before it starts flowering), give it a tablespoon of granulated fertiliser (7-14-28) once a month. The fertiliser should be high in potassium (K) and low in nitrogen (N), since too much nitrogen will only encourage leaf growth. The fertiliser can simply be scattered on top of the soil. Agapanthus are affected by very few pests and diseases, although they may attract aphids in the spring.
It's best to keep Agapanthus outside until the first frost. A light ground frost is no problem, but to be on the safe side, it's best to place them under cover or under a garden table in mid-October. The optimum overwintering temperature is between 2°C and 8°C: at these temperatures, the plant can mature and harden off properly and initiate new buds for the next flowering season. It is very important not to protect the plants from the cold by covering them or taking them indoors too early. Remember that Agapanthus won't survive temperatures below -5°C. Stop watering Agapanthus in October.