"Essential Reading for Rose Lovers" Series Two
A brief knowledge of green plants, introducing the knowledge of rose lovers about roses, "Essential Reading for Rose Lovers" Series Two. Next, our site editor will introduce to you.
One, the selection of cultivation site
Roses need plenty of sunlight to bloom and thrive, with the sunny side being the best choice. Roses require a fresh environment, and good ventilation is also important.
In cold northern regions, do not plant roses in wind-exposed areas or the lowest part of slopes to prevent frost damage. Roses like water but dislike waterlogging and fear积水, with the middle section of a south-facing gentle slope being the preferred choice. A deep soil layer rich in organic matter is what roses like the most.
Two, soil improvement
Roses can grow in a pH range of 5.5 to 8.0, but a slightly acidic soil with a pH of around 6 is most suitable. Alkaline soil can be improved with gypsum or other amendments, while acidic soil can be improved with lime powder. Most of the rose roots are concentrated in the soil surface layer of 30-40 cm, but the depth of soil tillage and the size of the potting container should be 50-60 cm.
Water penetration should exceed the root layer, and deep tillage can prevent root waterlogging. Before improving the soil, remove weeds and clear stones, crush large soil clumps, then dig the soil in layers, apply fertilizer in layers to accelerate soil maturation, and form a good soil structure. Apply compost/crop straw/fish waste/shrimp bran and mix with soil at the bottom layer, and apply mature manure/compost/slow-release fertilizer and mix with soil at the surface layer. If there are pests in the soil, you can mix the pesticide Dimethylaminopropylamine (Metalaxyl-M) into the surface soil during the soil turnover. The best base fertilizer is cow dung. Chicken manure should be avoided.
Potted roses can use a mixture of common garden soil + peat +珍珠岩/蛭石/charcoal particles/rice husk carbon (choose one) + a small amount of river sand. If using a ceramic pot, it is recommended to use a larger pot, with a layer of碎石 or陶粒 at the bottom for good drainage. Indoor planting can mix some high-quality imported slow-release fertilizer into the soil to avoid unpleasant odors.
For ground planting, it is also necessary to consider a good drainage layer, especially in areas with more rainfall. You can dig the soil to a depth of 80 cm and add a layer of crushed sandstone or bricks to prevent waterlogging damage to the roots during the rainy season.
Whether potted or ground planted, the soil should be mixed well.
The recommended ratio is as follows:
Garden soil (the soil from the ground, preferably sieved to remove small stones) 50-60%;
Protective soil (decayed leaf soil under trees for many years, or commercial peat) 20%-30%;
River sand (not sea sand, which has salt and alkali) 10%;
Aerating materials (perlite/vermiculite/charcoal particles/bamboo charcoal particles/rice husk carbon) 10%.
This article shares the specific introduction of "Essential Reading for Rose Lovers" Series Two - Soil, hoping to bring some flower knowledge to flower lovers.