How do you water Pachycereus pringlei correctly?
Pachycereus pringlei is only watered in summer. Wait until the top layer of the substrate has dried. Use water with little lime, preferably rainwater.
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You must avoid waterlogging. Excess irrigation water should be poured out immediately.
Do you need to fertilize Pachycereus pringlei?
Pachycereus pringlei can grow quite tall and therefore needs more nutrients than other cactus species. He is provided with normal cactus fertilizer once a month from April to August.
Are you allowed to cut the pillars?
In its homeland, the cactus tree reaches a height of up to 15 meters. Of course, it stays smaller in room culture. If there is not enough space, cut off the columns that are too long with a sharp, clean knife. Wrap the shoots with a terry towel so that you do not injure yourself on the thorns.
You can also cut shoots for propagation in summer. To do this, choose columns that are already half lignified.
When is it time to repot?
Once a year you should check whether the previous pot is still sufficient. You can replace the old substrate with fresh soil right away.
The best time to repot is spring.
What diseases and pests should you watch out for?
- Root rot
- Fungal diseases
- Scale insects
- Mealybugs
Root rot can be prevented by only moderately watering the cactus.
Fungal diseases are expressed by spots on the shoots.
You can recognize a lice infestation by the sticky spots on leaves and sprouts.
How do you care for Pachycereus pringlei in winter?
The tree cactus can withstand comparatively low temperatures, but is not frost hardy. It should never be cooler than 1 degree.
Ideally, the Pachycereus pringlei will overwinter at 10 to 15 degrees. The location must be as bright as possible. A greenhouse or a conservatory that is not too heated is a good option.
In winter you do not water the Pachycereus pringlei and do not use fertilizers.
Tips
With good care, the Pachycereus pringlei develops white flowers from June to August that open at night. Small berries emerge from the fertilized flowers.
