Calla lilies are beautiful flowers that come in a variety of colors, including white, yellow, purple, and pink. The blooms rest on trumpet-shaped stems, and when they’re spent, they leave behind seed pods. However, the seedlings are most often propagated through the bulbs instead of the seeds; because of this, many people don’t know how to grow calla lilies from seeds, but it is possible! We have the proof, and the knowledge to help you make it happen!
If you’re looking to grow calla lilies from seeds without an existing plant, you can always purchase seed pods from reputable catalogs, nurseries, or other growers. If you already have a calla lily, you can collect a mature seed pod from a spent flower. Calla lily seed pods each contain at least one or two seeds. Keep in mind that the seed pod itself can take a few months to mature, so you should leave it attached to the plant and wait to harvest it until after it’s matured.
The seeds themselves need a dormancy period before planting, roughly around three months. If you’re attempting to grow calla lily seedlings indoors, you can plant the seeds as soon as they’re ready; however, if planting outdoors, you should wait until the next spring to plant your seeds. Most often, you’ll be harvesting your calla lily seeds in the fall, anyway, so spring is the perfect time following the dormancy period.
Growing calla lily seedlings from seed takes time, patience, and understanding. A viable seed will sprout; however, it could be up to three years before you finally see a bloom on your calla lily. For the best success, you’ll want to start your seeds before you plant them (whether in containers or outdoors). This will also help you figure out which seeds are viable and which aren’t.
To start your calla lily seeds, spread them on a damp paper towel and lightly cover. Keep the paper towel in a cool place, away from direct sunlight, and check them every few days for growth. Once they start to grow, you can plant them in soil (and discard the ones that haven’t sprouted). Choose pots with good drainage and fill them with well-draining soil. Plant two seeds per pot, not too far under the soil, and keep the soil moist until the calla lily seeds begin to sprout. Once a few weeks have passed and the seedlings have grown a bit, you can separate the two seedlings (or just remove the smaller one) to encourage stronger growth.
Caring for your calla lily seedlings will be a bit different than caring for the fully-grown plants. Once you plant them, you’ll want to fill the drip tray for your pots with about an inch of water, wait an hour, then drain the excess water from the tray once the soil feels moist. After the initial watering, make sure to only water the seedlings when the surface of the soil is dry.
The growing seedlings should be kept in an area that gets around six to eight hours of direct sunlight per day. If you don’t have a space like this in your home, you can always supplement natural lighting with the proper grow lights. If you live in a drier place, you can also opt to keep a clear plastic bag over the pot (prior to sprouting) to help the soil retain moisture and humidity, but the plastic bag should be removed as soon as the seedlings start to grow.
Whether it’s transplanting to a new pot or outdoors, you should wait until your seedlings at least have their second set of “true leaves” (or seeds that can perform photosynthesis). It’s important to note that the first few pairs of leaves that grow on your calla lily seedlings are not true leaves but seed leaves. Once they’re big enough, you can transplant the seedlings into a 6-inch deep pot (with good drainage!) at the same depth it was growing in the first pot. The ideal potting mix to use will be one that drains well. Many people will use a mix that is formulated for azaleas.
If you’re moving the seedlings outside, you should wait until the early summer to do so. At that point, plant them at the same depth in the ground as they were growing in the pots and make sure that the location receives the needed six to eight hours of direct sunlight. Calla lilies planted outdoors need around one to two inches of water a week.
With these tips, you should find yourself growing calla lilies from seeds in no time! Don’t worry if the first batch doesn’t work out. There is always a learning curve to growing plants from seeds, and there will always be seeds that aren’t viable. But with time and patience, you’ll have a new calla lily plant to show for all your hard work.
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