Encephalartos
The Encephalartos are a genus of cycads that contain about 88 species and numerous varieties and natural hybrids. These cycads are found in Eastern Africa, specifically from Sudan south to South Africa, including Madagascar. All species of Encephalartos consist of either male or female trees which makes it difficult to propagate these cycads from seed. All the Encephalartos species are considered endangered or threatened across their respective ranges because of over-harvesting and habitat loss.
The Encephalartos needs plenty of water and prefers to be watered from below. Again, it should be noted that Encephalartos wouldn't need to be watered as frequently during the resting period. The main rule to remember is to keep the compost of the Encephalartos constantly moist during the warmers months. It is recommended to allow the soil to dry up a bit between waterings. However, during the cooler months, cut back on watering as much as possible. Additionally, if your home is humid and warm, the Encephalartos may need to be watered daily.
Encephalartos prefer temperatures that range from 22-30° Celsius (73-86° Fahrenheit). The highest temperatures should be avoided. Encephalartos also prefers partial shade but can survive in some strong indirect light. It should be noted that Encephalartos will be severely damaged if it is placed in direct sunlight. When possible, place the Encephalartos beside a window where it will not receive strong direct sun. It can also be placed in a patio setting, but must be protected from direct sunlight.
Encephalartos are extremely temperature sensitive and should be kept in temperatures ranging from 9-16° Celsius (48-60° Fahrenheit) during the cooler winter months. If temperatures stay too high or too low for too long, it can easily damage the plant. Therefore, it is strongly recommended to keep the cycad away from direct sunlight and drafts.
Encephalartos prefers a good amount of humidity and prefers to be kept in environment with 40-50% humidity. This can be achieve with high evaporation levels or high water levels. Far as rainwater, it is always best to plant your Encephalartos in a protected area where it is not directly hit with the rain. Additionally, it is recommended to mist the cycad weekly or spritz the surface of your soil mix with water to maintain humidity levels.
Encephalartos enjoy moist organic soil that is rich in humus and high in nitrogen. The pH level should be neutral or slightly acidic. The important part when potting your cycad is a good balance of drainage and retaining moisture. It is recommended to mix coarse sand, a little sphagnum moss, and some perlite or vermiculite in the soil mix. It is also important to avoid incorporating any type of fertilizer in the soil.
Encephalartos should be fertilized once a year with a balanced fertilizer formulated for cycads or other succulent plants. It is important to remember that if you use a fertilizer with trace elements, be sure to use it at 1/10 the dosage of what is recommended on the label. An example of such a fertilizer is an 8-8-8 formulation. Additionally, it is necessary to use your fertilizer in the spring when the new leaves are appearing and refrain from using fertilizer during the resting season as it could easily damage the plant.
Encephalartos is fairly resistant to pests such as scale insects, spider mites, and mealybugs, but can still be susceptible to other common pests. In the event you do find your Encephalartos is inflicted with pests, the safest way is to treat it with an organic pesticide like neem oil or insecticidal soap. Also be sure to not over water your cycad as this can result in disease that will attract pests. If the infestation appears to be severe, it is highly recommended to take your cycad to a certified greenhouse or a knowledgeable plant nursery.
Your Encephalartos is a slow growing plant and does not need to be repotted often. Repotting should be done only when the cycad has become too heavy to move safely or when the potting mix has darkened due to excessive water. Also, if you live in warm and humid climates, it may be beneficial to repot your plant during the winter months so that the soil gets a chance to dry out and the cycad can take full advantage of the cooler temperatures.
The Encephalartos does not require much pruning, but if you notice any damage or broken leaves, it is best to trim them as soon as you can. When trimming, cut the stems at the base of the leaflets. Additionally, if you notice any offsets (small plants) or live pups, it is best to let them remain in the soil until they are well established before attempting to transplant them.
Mulching is beneficial for the Encephalartos as it helps keep the roots cool and moist. A protective layer of mulch should be placed around the plant to retain moisture and provide an even temperature. Suitable materials for mulch include bark chips, shredded wood, leaves, and pine needles.
Propagating an Encephalartos successfully is a difficult task because the cycads have both a male and female tree. Therefore, the best way to propagate a Encephalartos is by harvesting it’s seeds. It is recommended to harvest the seeds in its third or fourth year, when it has fully matured. In order to increase the chances of successful propagation, the seeds should be kept at a temperature of 15-20° Celsius (59-68° Fahrenheit). Once the seeds have germinated, they can be potted up in a shallow container filled with moist seed raising mix.
As Encephalartos grows, it is necessary to provide some support to the trunk of the cycad. This support will help to prevent the thickening of the trunk and will help to minimizes the amount of bending in the leaves. A wire basket or a wooden stake can be used for support. Make sure that the basket is well secured to the ground and the stake is firmly inserted into the soil. The basket or stake should be placed approximately 6 inches away from the trunk.
The Encephalartos needs a period of rest, which usually consists of periods of cooler temperatures and reduced water. This resting period will help keep your cycad healthy and vigorous for years to come. The resting period should start in November and should include short cooler days and nights, and reduced watering frequency. In most cases, some yellowing and browning of the leaves is completely normal.
The Encephalartos is considered toxic to pets. If ingested, it can cause a variety of symptoms in animals including, vomiting, salivation, depression, diarrhoea, weakness, and even death. Therefore, it is important to be aware of the risks involved when bringing an Encephalartos into your home and to take necessary precautions to protect your pet.
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