This problem is known to many garden owners: an ornamental tree planted a few years ago grows beautifully, has more and morespreading crownand growingmore extensive system rootUnfortunately, over time it turns out that no other plant wants to grow nearby .
For smaller species, e.g.perennials , life is made more difficult mainly by trees producing shallow root systems, e.g.clonesandbirchesHowever, this group also includes more friendly species that can be successfully planted with perennials, e.g. iglicznia(glediczja)trójcierniowaGleditsia triacanthos. It does not sprout a lot of tiny roots, so there is enoughspace life spacebetween the shallowly placed thicker roots for other plants.
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Table with the division of trees into friendly and not friendly to ornamental plants |
Trees with deep roots
Trees rooteddeeply are much less troublesome as their root systems usually do not overgrow the top layer of the substrate. The exception is the walnut. Hissystem rootconsists of a tap root that grows into the soil as well as severalrootssidethat diverge in different directions just below the earth's surface.In addition, the leaves of the walnut contain a lot of tannins, which after getting into the soilinhibit inhibiting the development of other plants.
Trees withheart-shaped rootswith intermediate features make up the third group of trees. These plants put out several main roots that radiate out from the baseof the trunkand grow into all layers of the soil. Since they are usually not very long, the entireroot systemtakes on a heart-shaped shape. Individual systems differ in the size and density of the root mesh. Withapple treegrows wellrose climbing , whose flowering stems climb towards the sun between the branches of the tree, while under does not want to grow with a beech crownalmost none plant
Not all plants are bothered by difficult conditions
Difficult conditions are not an insurmountable obstacle, as there areplantsyestoughenedthat they are not afraid of a lack of light caused by an umbrella of leaves nor the ground heavily overgrown with tree roots.Some perennials in theirnatural habitats insideor on the edge of the forest have adapted to the discomforts of environmental evolution and cope well with underground competition. This group includes, among othersForest parzydłoAruncus, Astilbe tawulki, various speciesGeraniumGeranium,FoxgloveDigitalis,epimediumEpimedium,rodgersję, wood anemoneAnemone sylvestris,heart, sweet madder, yellow guinea fowl, spotted lily, spring illusion,a also variousfernsandgrasses.
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Bodziszka is another perennial that grows even in difficult conditions (Image: Fotolia.com) |
In large, park-like gardens,hydrangea climbingHydrangea petioralis, growing up to 20 m in length, works great as a ground cover. Its creeping shoots expand widely and cover large areas.
Things to remember when planting plants under trees
When planting plants under already largetrees,we must remember to water them. This treatment requires patience andregularity.Thanks to this, the plantedperennialsor climbers will have better conditions to accept. Once we notice that they are growing, we cannot stop watering them ,because in such places of the garden the competition forwateris enormous.
A uniform, always green carpet of leaves is made of luxuriant evergreen plants, such as Hedera ivy and bergebia,Japanese runian, kopytnikAsarum euro paeum,periwinkleVinca. If no flowering perennials want to grow under the trees, let's plant some ornamental plant bulbs in autumn, e.g.crocusesorsnowdrops.Their flowers will even develop in the spring under the crownmapleorbirch.
