![]() Try to keep moisture off the cactus seedling stem. This will keep the potential for rot down and encourage the roots to grow outward. Once the cactus seedling has been growing stable for a while, it is a good idea to water from below the pot and let it draw up moisture or spray between the soil and the pot so that the water pools down below. Your overall moisture needed is dependent upon things like light, temperature and whether your plant is in active growth. There’s not set amount to water because it depends on how fast the water is evaporating and how much water your cactus is using at the current rate of growth. But initially, you just want to water enough that the plant will not totally dry out. Generally, this requires less water than you expect.Pick seed pods from existent cacti or buy commercial seeds. When it comes to obtaining seeds for your cactus, you have two options: buying seeds from a gardening store or supplier or picking your own from a cactus that you already have at your disposal. Here, you are essentially choosing between price and convenience - store-bought seeds are cheap and pre-packaged, while self-picked seeds are free but require a little more work. If you're buying seeds, you shouldn't have too much trouble finding them for sale. If, on the other hand, you want to pick your own seeds, start by finding the seed pods or fruits on your cactus.Many brick-and-mortar garden supply stores sell cactus seeds, while online shopping sites can allow you to effortlessly browse hundreds of varieties before ordering. ![]() Usually, these are brightly-colored offshoots of the main cactus body which bear a flower. When the flower falls off, the pod or fruit is ripe and is ready to be harvested (assuming it has been pollinated).Ĭover the container and expose it to sun. Once you've moistened the soil and planted your cactus seeds, cover the container with a transparent lid (like plastic wrap) and place it in a location where the seeds will receive a good amount of sun - a sunny window is a good location. Sunlight should not be intense and constant, but should be strong for at least a few hours each day. Be patient as you wait for your cactus to germinate.The transparent lid will retain moisture in the container as the cactus begins to sprout while allowing light to reach the cactus. Tropical cacti are used to the shady environment under the jungle canopy and thus generally require less sun than desert cacti.Depending on the species of cactus you are growing, germination can take anywhere from several weeks to several months. You can usually get away with growing a tropical cactus in a brightly-lit spot that receives no direct sunlight. For instance, hanging pots under a shaded awning are a great location for tropical cacti. Established cacti have less vigorous watering requirements than most other potted plants. Though they do require some water, their reputation as hardy desert survivors is well-earned. Most varieties of desert cactus require little water once they're fully established. Though individual species of cactus may differ in the amount of water they require, a good general rule is to let the soil dry out completely before watering. Remember that cacti experience slow, gradual growth.Depending on the temperature, this mean waiting a month or longer between waterings. Watering more frequently than is necessary can lead to problems for the plant, including root disorders that can cause the eventual death of the plant. ![]() ![]() Tropical cacti are something of an exception to this rule, as they are naturally acclimatized to more humid environments than desert cacti.
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