There is an art to watering flowers: which flowers should not be watered too much

Cacti and succulents are drought-tolerant and afraid of waterlogging, such as the golden barrel cactus, cactus, aloe, night-blooming cereus, and mother of thousands; if the potting soil stays wet for a long time or the plants are exposed to rain, they are most prone to leaf rot and root rot.

For all fleshy-rooted and bulbous plants such as orchids, tree peonies, Chinese peonies, clivia, dahlias, gloxinias, ribbon grass, cyclamen, and bird of paradise, one of the major causes of death is waterlogging.

Some woody flowers are also very afraid of waterlogging, such as plum blossoms, longevity peach, osmanthus, azaleas, wintersweet, banana shrub, bougainvillea, Norfolk Island pine, Dracaena fragrans, Daphne odora 'Aureomarginata', and begonia varieties. If they are waterlogged for 3 to 5 days, they will be on the verge of death and difficult to save.

Some flowers that by habit prefer moisture are also afraid of waterlogging, such as chrysanthemums, jasmine, Aglaia odorata, and asparagus fern; because the potting soil is too wet or has been exposed to rain for a long time, the roots can easily suffocate and die. To prevent flowers and trees from suffering waterlogging damage, the following measures can be taken:

(1) For ground-planted flowers and trees that are afraid of waterlogging, a good site should be chosen and they should be planted in a high, dry place, not in low-lying ground.

(2) For ground-planted flowers and trees at risk of waterlogging, drainage ditches should be dug before the rainy season arrives, and the soil should be mounded higher around the plant roots; after mounding the soil, precious flowering trees are best enclosed with plastic sheeting.

(3) During the plum rain period, potted flowers should be moved to a rain-sheltered place as early as possible. If there are too many potted flowers to move in time, they should still be tipped over on the spot to prevent water accumulation.

(4) For potted flowers and trees, the drainage holes in the bottom of the pots should be enlarged in advance; after covering the holes with a piece of window screen, add a layer of jujube-sized bricks, charcoal residue, or charcoal pieces so that excess water can drain out at any time. Before planting ground-planted flowers and trees that are afraid of waterlogging, the planting pit should also be dug deep, and a relatively thick layer of gravel or charcoal residue should be spread at the bottom of the pit to help water seep away.

(5) When watering flowers and trees that are afraid of waterlogging, be sure to follow the principle of watering when dry and withholding when wet, and as much as possible use the method of spraying more and pouring less. When watering, both mid-height watering and water accumulation in the pot must be prevented.

(6) For flowers and trees that have already suffered waterlogging damage, the wet root ball should be knocked out promptly, the wet mud removed, and the plant placed in a cool, ventilated place with appropriate misting of the branches and leaves; after the plant regains its vigor, replace the soil and repot it.