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My Cycad Is In Trouble! (Continued Page 3)

Keys to good culture. How to avoid problems

“An ounce of prevention is worth a pound of cure”. It might even be that it’s worth many pounds of cure with cycads. Below are some simple rules to follow.

Inspection

This is one of the most important things you can do. Follow the guidelines mentioned previously and practice observation, especially watching for problems or failure to thrive. Usually you can find the problem and fix it.

Growing the right cycads

Growing the right cycads for you area is important. This will involve your talking to someone or doing a little research on your own, but it can make a huge difference in your garden. You will find that some cycads want a tropical environment where some want a dry one. Fortunately for us in Southern California, we can grow most cycads.  Our limitations are with those with the most tropical demands.  If you live in a temperate or colder area, tropical Zamias might prove impossible without a greenhouse. You might also find that South African species of Encephalartos grow better than those from Central Africa.  Also, very humid climates such as in Miami or the Tropics might find arid growers like Encephalartos horridus prone to rot.  This might require special preventative cultural techniques.  For the greatest chances of success, get species right for your area.

Drainage, drainage, drainage

Regardless of your soil type, always maintain good drainage. The soil should never be waterlogged. Sand, pumice and gravel help promote drainage. Very fine sand, leafy organic material and clay-type topsoil slow it down. If it is impossible to offer good drainage in the garden, mound up you cycads above the soil line so you can control the water content of the soil.

Soil

Either make or amend you soil to create good drainage. See our article on cycad soil for specific formulas. Remember that the organic components of cycad mix can break down, resulting in “muck” at the bottom of the pot or an impediment to drainage. Repotting is the remedy for this problem. This is important for container culture. In the garden consider amending with sand. If you can’t buy or obtain materials for a good cycad soil, think about using a cactus and succulent mix. These might suffice. 

Adequate sun

We have seen many promising cycads stall because they have lost their sunlight. This is usually the result of competitive more rapidly growing plants. If a species wants sun, remember to maintain it. Loss of sun will lead to a plant that just sits there and doesn’t do much of anything. 

Fertilizing

Fertilizing is an important part in growing any plant. The key is to know what kind, how often and how much you should fertilizer you should use. We recommend using a slow-release fertilizer like Osmocote, using an N/P/K ratio that is 3-1-2 or 3-1-3.  An example of a good fertilizer might therefore be 18:6:18.  You should fertilize once every three to four months, depending on your formulae and release rate. I always recommend that you use a little less fertilizer than what is suggested on the bag because you don’t kill plants with too little fertilizer, but you do with too much.

Watering

Watering is an important part of growing cycads, because there’s hardly a cycad that likes to have wet feet. Get use to inspecting your garden soil or the soil in he containers. Don’t let it stay too damp. Drying out near the surface is preferable on most species.  Typically, watering frequencies for temperate weather is about once, or possibly twice a week during hot weather. During the winter, once every week or two is usually adequate. For desert type environments, adjust the frequency depending on the soil moisture content. For tropical environments, try to avoid conditions where the plant and soil are continually damp. Mounding might be necessary. Or, overhead shielding during the rainy season might be needed. Also, regardless of where you are, water the garden or container soil, not the crown of the plant. Repetitive watering of the crown will lead to rot. This means that frequent overhead sprinklers can be a problem. Ground bubblers on timers can be great for the cycad garden.  This also explains why climates with daily monsoon seasons can lead to difficulties with some species. 

Ventilation

 In a greenhouse environment, ventilation to provide adequate air movement around your cycads will help prevent mold and rot. Stationary oscillating fans or intake/exhaust fans can help accomplish this.  Poor ventilation often causes mold and scale problems in the greenhouse.  

Prophylactic treatment

Get into the habit of inspecting your plants. If you see fungal problems or rot, treat it early. Fungicides can also be used prophylacticly to avoid problems if you are anticipating them. This would especially apply to plants grown in a humid greenhouse.

In this article we have covered many of the basics in protecting your cycads. The great thing about it is that cycads really do not take much maintenance at all. You could say that they almost thrive on neglect. Just be careful when you water, don’t fertilize too much and make sure that your cycad is in a quick draining soil and has adequate light. If you do the things discussed above, you should become a successful cycad grower.

(End)

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