Choosing a location for your cactus to grow is the first step in growing prickly pear cactus. Both containers and the ground can be used to grow prickly pears. Choose a succulent and cactus mix for your soil if you’re growing in a container, and make sure the container has drainage holes. Start by adding a layer of pebbles to the bottom of the container for improved drainage. When growing prickly pears in containers, you must transfer them anytime the cactus becomes root-bound into larger pots.
Opuntia cactus can grow in less-than-ideal soil, but they favor well-draining, sandy or loamy soil and may not thrive in some coastal Southern California areas with thick clay soil unless the soil is improved with drainage amendments. Consider adding some peat moss or sand to your soil mix if you are working with thick, clay soil that drains slowly and absorbs moisture. This will help the soil’s structure.
You must choose how you want to start your cactus after determining whether it will grow in the ground or in a container. Starting from seed, growing from a cutting, or buying a young plant at a nursery nearby are your three possibilities for doing this.
The simplest option to get started is to buy a young plant at a nursery; all that’s needed to do is move your cactus to a sunny location with well-draining soil. Established plants can tolerate all-day direct sunlight and little water. Prickly pears should be transplanted in the spring, but if you live in Southern California’s dry, arid region, you should be able to do so at any time of the year.
Growing Prickly Pear Cactus for Cuttings
The simplest method for starting your own cactus is by propagation using a cutting. You must first gather your cutting, which you can do by foraging or by contacting someone who already has a mature plant. Pick a healthy pad, hold it with gloves on, and cut it free from the plant by cutting above the point where it connects to the plant. Avoid cutting into the plant below the area where the pad is attached because this could harm the plant.
Once the amount of pads you want to multiply has been trimmed, spread them out in a dry, shaded place far from kids and animals. To allow the cut to heal and develop a callus, leave them outside for about a week. Then, to assist the pad stand upright, bury the callused end of the pad one to two inches deep in a container. You can use small rocks to support it if it is teetering or tumbling over, which is a problem.
Before moving your cactus into your garden, it is advisable to let it grow in the container for about a year. This will enable you to have more control over the growing environment, allowing the plant to establish itself and begin to flourish. The majority of the year, you can bring the planted pad outside as soon as it is planted, however you may want to keep it out of the mid-afternoon sun until it starts to establish. Keep your opuntia indoors till spring if you reside somewhere with exceptionally harsh winters.
Early on, your cactus will need a little more water, so when the soil starts to dry out, water it by about an inch. At initially, you might just need to do this once or twice per week. Once you notice new growth, your cactus is considered established. At this point, you can cut back on watering to roughly a quarter inch of water each week in the summer and a quarter inch every other week in the winter.
After your plant becomes established, you can relocate it to its permanent home because it can withstand full sun all day.
Growing Prickly Pear Cactus from Seeds
It is possible to grow prickly pear cactus from seeds, although the process is more time-consuming and labor-intensive. Although it is considerably simpler and more practical to grow your cactus from a cutting, here are some recommendations to get you going if cuttings are not readily accessible or you prefer to grow from seeds.
You must first obtain the prickly pear cactus seeds. You can get seeds from prickly pear fruit, buy them online or in some nurseries, or both. If you pick them from fruit, make sure all bits of the fruit are entirely removed before drying them up and planting them.
One seed should be placed in each little pot or portion of the seed tray after the succulent and cactus mix has been added to the container or tray. Opuntia seeds should not be pushed too far into the soil because they need sunshine to sprout. To promote germination, place your pots on a sunny windowsill or beneath grow lights.
As you wait for them to germinate, keep the soil moist but not damp. Once you have seedlings, keep an eye on their color to see whether they want more or less light. Move them to an area with more sunlight if they appear yellow. They require a location with less light if they appear red or brown. If they are green, they are content with their surroundings.
Your seeds can grow in the pot they are planted in until they outgrow it if you start them in containers. Before transferring them from seed trays to pots to continue growing, check sure they are mature and healthy.
General Tips for Growing Opuntia Cactus
Pruning your prickly pear cactus is only necessary to remove damaged pads. These cacti don’t need fertilizer either, but you can promote the health and development of young plants with a monthly application of 10-10-10 liquid fertilizer. Use a 5-10-10 or a 0-10-10 fertilizer to promote the growth of more flowers and fruits.
How long does it take for the seeds of prickly pears to sprout?
Sandpaper should be folded with the rough side inside. Put the prickly pear cactus seed inside the folded sandpaper and lightly touch the outer coat with one palm on top and one under the sandpaper.
You only want to softly scratch the exterior of the seed coat; avoid cutting into the seed. Every seed you want to germinate needs to be treated in the same way.
The seeds should be placed in a small basin with room temperature water and let to soak for the night.
Sand and sphagnum peat moss or coco coir should be combined in a 1:1 ratio, and the mixture should be evenly moistened. To within 1 inch of the rim, pour the mixture into the germination container.
The seeds for the prickly pear cactus should be placed on top of the planting medium, then lightly dusted with sand (about one-eighth inch).
Set the thermostat to 77 degrees Fahrenheit and place the heat mat somewhere that is still shielded from the sun. Place the germination container on top of the heat pad, and continuously maintain a small moisture level in the soil.
Germination of prickly pear cacti can be unpredictable. It could take as little as five days or as long as 180 days for the seeds to grow.
When the seedlings are 3 inches tall, transplant them into separate pots filled with cactus mix. After the first two winters, let them continue to grow indoors. Then, in the spring, when all threat of frost has passed, plant them outdoors.
Observation: Although we have never raised prickly pear cactus from seed, we’ve been told that the germination rate is normally fairly low.
Prickly pear cactus seeds should be planted in wet, shaded, or gloomy environments, according to some growers. Move them to the light in a dryer place once they have sprouted.
To make sure anything germinates, we would try both approaches if we were trying to grow O. humifosa.
How are prickly pear cactus seeds grown?
The ripe fruit of a prickly pear cactus can be used to collect the seeds of the plant. The moniker “prickly pear cactus” is accurate. North Carolina State Cooperative Extension suggests wearing gloves and handling plants cautiously since their spines are sharp and can irritate people’s skin.
The seeds should be well cleaned to get rid of any pulp, then dried on paper towels in a warm area for a week or two until they were totally dry. According to North Carolina State Cooperative Extension, opuntia seeds need to mature for at least a year before germination. Until you’re ready to plant them the following spring, keep seeds in an airtight container in a cool, dark location.
Before planting, should cactus seeds be soaked?
Use pre-made or homemade cactus soil mix to fill a tiny pot. To level the earth, gently press it down. The soil is properly drained and aerated with the use of inorganic grit, sand, or pumice.
Step 2
The seeds should be soaked in warm water for 30 minutes prior to planting. This encourages germination and loosens the seed coat. Opuntias need a few days of soaking in warm water since their seed coverings are quite resistant. Soak the seeds, then scatter them over the top of the flat soil. Unless the seed is exceptionally large, avoid pressing it into the soil.
Step 3
Just enough inorganic top dressing should be used to completely cover the seeds and soil surface. Don’t cover the seeds entirely in the top coating. Water gently and let the pot entirely drain.
A word about watering: During step 4, it is essential to use freshwater or distilled water to help avoid bacterial and algal growth. If the chlorine in your tap water is overpowering, you should think about drinking distilled water instead. The chlorine will damage or stop growth by burning the young, delicate roots and perhaps causing iron chlorosis. Careful watering can be accomplished by either letting the pot stand in water that is half its height or less, or by gently watering from the top while being careful not to wash away the top dressing. Allow the pot to drain completely in both scenarios.
Step 4
With a plastic container that enables light to pass through, cover and seal the pot. This might be a plastic tub or a supported plastic bag that is rubber-banded shut around the plant. The goal is to create a setting that will act as a greenhouse by retaining heat and moisture. Many things will work, so think creatively and ingeniously! But take cautious not to leave the seedling container submerged in water for too long. If you have chosen a plastic cover that is clear and colorless, move the pot to a location with bright indirect light that is approximately 70 F (21 C). If you’ve picked a clear but colored container, like blue or green, you should put it somewhere with a little more light while keeping the temperature the same. If you have chosen a container that is slightly hazy or foggy, you should put it in a cooler environment, 65 F (18 C), where it receives at least 4 and no more than 8 hours of direct sunlight, with the remaining hours of the day spent in brilliant indirect light.
Keep in mind that the sun is hotter in the late morning and afternoon than it is in the early morning or early evening. Consider the plastic bottle in general as sunscreen. The most light can travel through clear, colorless plastic, slightly less light can pass through clear, colored plastic, and even less light can flow through fogged, clear plastic. In every situation, the plastic container’s interior will warm up.
Don’t fry your young, delicate plants! If the walls of your container dry out during germination, water sparingly, reseal the container, and move it to a warm, well-lit area. If algal growth appears, remove the cover and let the seedling pot partially breathe before wiping it down with a solution of no more than 1 part bleach to 20 parts water (5 percent bleach in water). Give the cover time to dry. Place the seedling container back in a warm, well-lit area after recovering it and sealing it. As needed, keep cleaning the plastic container.
Step 5
The recently sprouting seedlings appear to be well on their way, despite being above earth. They have disproportionately small root systems underground, making it difficult for them to quickly take in the nutrients they need to grow into mature plants. Therefore, until they are almost fully grown, the seedlings should be kept in a plastic container at a high humidity level. Up until appropriate root systems are created, high humidity makes it easier for the roots and leaves to absorb water and nutrients.
Step 6
When the seedlings are large enough to handle, carefully take each seedling from its original nursing pot while wearing gloves or covering your fingers with tape. If the soil has kept moist, this is much simpler.
Step 7
Repot the seedling gently into a pot filled with cactus and succulent soil mix, filling the pot all the way to the top, and top dress with sand, gravel, or pumice. 3 or 4 days later, water. Never put the cactus back in its humidity compartment made of plastic.