We have collected some of our best advice on how to best care for your outdoor plants on the balcony, terrace and backyard

Irrigation
  • "Rain is good for the garden", say all garden owners optimistically when it rains on a summer's day. They are right: rain is good for our plants and often gives them more water than when we water. However, very few plants thrive in wet soil all the time. The soil should preferably be allowed to dry out a little. But in periods, for example 4-5 days without rain, you need to water a little extra. Especially in summer, when it is hottest, as the water evaporates faster due to the high temperatures.

  • It is better to water a lot at once than to water frequently.

  • The best time to water is in the evening or early morning. Avoid watering in the middle of the day, especially in summer as the water evaporates quickly.

  • Pots require a little more attention than beds because they don't have as much space to absorb the water.

  • Especially for smaller pots, saucers can be a help in the summer, as they help retain water. But if you don't have saucers for your pots, don't worry too much, you just have to keep a loving eye on the plants in high summer.

Continuous fit
  • For flowering plants, the flowering period can be extended by regularly removing wilted flowers. Then the plant uses its energy to shoot new flowers.

  • Enjoy the beautiful flowering perennials. Remember that they have different flowering times, so not everything will be in full bloom at the same time. In August, many of the summer flowers will begin to bloom, but on the other hand, all the perennials now have late summer flowers.

  • If you have evergreen plants that need pruning, then May to August is the best period to do this.

    After flowering and during the winter season
    • At the end of September, most of the perennials begin to bloom and with October comes the autumn rains. Therefore, remove all saucers from the pots and put them in a cellar or bike shed over the winter. If pots are left in saucers over the winter, it increases the risk of the roots rotting or the pot getting frostbite, as the heavy soil cannot get rid of the large amounts of rainwater.

    • Although it may look a bit sad, it is best for the plants to keep the withered plant stems when the season is over. The withered parts of the plant protect the roots from frost. In addition, birds are also happy with the old seed pods on the withered stems.

    • Remember that no matter how sad a plant may look in winter, all your new plants are perennials and will therefore come back. See the attached plant overview for when the various plants are expected to sprout again.

      A new year
      • When the calendar hits March, and the hard frost is hopefully over, you can start cutting down the withered plant stems. For most perennials, the stems must be cut right down to the ground if they have not yet formed new fresh shoots.

      • If the plants have started to form new shoots, then only cut down to a few centimeters above where the new shoots begin. The plants benefit from a rough pruning, so start pruning early if you can.

      • Remember that plant waste is welcome to go in your compost container, which is also used for food waste.

      • If you have a lot of plant waste, your waste manager in the association can order collection of garden waste at https://www.nemaffaldsservice.kk.dk.

      • Even if the plants do not look like much when they are cut down, it will not take more than a few months before they have grown big and strong again. After pruning, you can ideally give the plants the first round of fertilizer and watering of the year.

      • In year 2, you will experience the first weeds in the perennial beds. You can tell by the fact that it sprouts long before the perennials and is typically grass-like or with small, round leaves. Weeds do not kill the perennials, but if you think it looks better without it, remove the early weeds so you don't have to weed all summer.

      • In pots, the nutrients will eventually disappear from the soil, and we therefore recommend that the soil be changed every year.

        When can you plant new plants?
        • Perennials are hardy and can in principle be planted out all year round. In January and February, however, the ground is extra cold and wet, so we recommend avoiding these months to put out new plants. Annual summer flowers can only be planted out when the night frost is completely over.

        • If you want spring flowers such as crocus, tulips, etc., you can advantageously put onions in the pot with perennials in August, so you can enjoy the pots in the garden earlier.