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What should I consider when watering my Moss rose?

Moss rose
Portulaca grandiflora
Learn More
There are several environmental conditions that will affect how your Moss rose needs to be watered, including the container size, soil type, temperature, and humidity.
First off, the container and soil you use will determine how often to water and how much water to use each time. Be sure you use a container with plenty of drainage holes in the bottom so extra water can escape the pot. A small container has less room for soil, meaning it won’t hold as much moisture, while a larger pot will stay wet longer and need to be watered less often. It’s important not to keep your Moss rose in an oversized pot as this can easily lead to overwatering. When repotting, move to just one size larger than the current container. A shallow container works better than a deep one, since Moss rose has shallow root systems.
Moss rose will need to be watered less often in winter and more often in the active growing season in spring and autumn. During the winter, growth slows down considerably and the plant isn’t using much energy or water. There is less water lost to evaporation in cooler winter air, meaning that soil stays wet for much longer than it would in the summer.
This also applies to the general climate around your home. If you live in a humid location with a lot of rain, you will need to water less often than if you live in a dry, arid climate. Remember that conditions at the same geographic location can vary significantly with the season and the use of indoor heating and air conditioning.
Outdoor Planting
If Moss rose is planted in the ground, after establishing a root system, it shouldn’t need supplemental water beyond what it receives through precipitation and dew. But if there is a long dry period, you may want to water occasionally. In other areas where Moss rose can only be grown in a container, this plant can be moved outside in the spring and summer when the temperature is proper and then brought back inside when temperatures start to drop. A potted Moss rose kept outside usually needs more water than the same plant kept indoors, because there is a lot more sun exposure even on a shaded porch.
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Moss rose (Portulaca grandiflora)
Moss rose
A species of Purslanes, Also known as Eleven O'Clock, Moss-Rose Purslane, Sun rose, Vietnam rose
Botanical name: Portulaca grandiflora
Genus: Purslanes
Description
Moss rose is an ornamental flowering semi-succulent plant native to South America. Gardeners can cultivate this easy-to-grow plant in annual flowerbeds, in containers, or in hanging baskets because of its trailing habit. Different cultivars have been selected and propagated for achieving striking variations in color, shape, and petal number of the flowers.
Garden Use
Moss rose is often found indoors as an ornamental potted plant. In summer, it blooms in a variety of bright colors. It can also be grown as a ground cover plant. It's quite adaptable and not hard to grow, provided with ample sunlight and a little moisture in a warm environment. Sufficient sunlight is a must.
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