1. Give the Agapanthus an open sunny location.
2. Always provide the necessary drainage: Agapanthus does NOT like wet feet, especially in winter!
3. When planting (transplanting) in pots, use a somewhat heavier soil type and good gravel drainage layer. This ensures that your plant will not fall over with the least breath of wind (a good alternative is to place a heavy stone at the bottom of the pot).
4. Repotting every year is out of the question. Always put the plant in a sufficiently large pot from the outset, do not use pots that are too expensive, because the sturdy roots and rhizomes often tense up in such a way that the pot cannot be released after a few years. Also forget the myth that Agapanthus would do better in a pot that is too small, this is not true.
5. Ensure that the Agapanthus receives sufficient fertilizer. Preferably use a fertilizer with a low nitrogen content and sufficient phosphorus and potassium. Use this fertilizer in early spring, after removing winter protection and at the end of August at the end of the flowering period (or give it in a slightly smaller dose). This bonus at the end of the summer stimulates the development of flower buds for next season. Organic fertilizer mix for Agapanthus: € 2.5 / kg. duration of operation (= 2-3 months). Agapanthus coated fertilizer (duration of action 6 months): € 7.5 / kg
6. Agapanthus is NOT completely hardy, both the evergreen and deciduous species must be protected in our climate zones. Winter hardiness, after all, is always a relative concept for plants depending on the soil, proximity to buildings, wind protection, location, microclimate in the garden and the extra winter protection that we offer our plants ourselves. It is true that many of our deciduous species can tolerate quite a bit of frost at the right location. Providing light coverage, this is not a major problem in our regions.
7. Evergreen Agapanthus should be stored frost-free in a light place, for example in the cold greenhouse: temperature between 2 and 8 degrees.
8. Deciduous Agapanthus can withstand a few degrees of frost (-5 max), therefore with severe frost in the garden: cover the plant with a substantial layer of straw, then plastic or bubble wrap and some sand or sand bags to prevent it from blowing away. You can protect pot plants with bubble wrap. In more temperate regions with less frost it is initially sufficient to protect the plants with a fleece cloth and to temporarily apply an extra layer of bubble wrap in the event of a brief larger frost.
9. Remove winter protection in time (but not too early), as soon as the long periods of frost are over, a lighter winter protection with just a fleece cloth will suffice. If the Agapanthus remains covered for too long, weak and weak young shoots will develop.