Dragon fruits overall are quite light feeders. If unfertilized, they tend to grow slowly. During the initial growing stage, a balanced nitrogen feed is good for the dragon fruit. It helps promote more root & branch growth. As it reaches flowering & fruiting, boosting up the phosphorous & potassium will help.
In some soil mix, people spread hay on the top surface. Every 6 months or so you can sprinkle a bit of chicken manure on top to help the hay decompose. As the hay breaks down, it becomes food for the plants & enriches the soil.
To increase the "stickiness" of the medium, try azomite. This material has dozens of minerals in it & helps keep vital nutrients in the soil not being washed away with watering. It is good for long-lasting feeding.
|A to Z minerals|
|70+ beneficial elements|
Some feeding tips
Some fertilizers might have a heating property to it. Before feeding your plants, open the bag, spread it out a bit. Don't put the feed too near the base of the tree. Space them out about 20+ inches away from the base. If possible, dilute the fertilizer & spray it around.
If the plant is young, feed it less. Around 1-2 scoops. If the plant is bigger, 3-4 scoops. You can feed it every 1-2 months. Dragon fruits absorb nutrients from their foliage surprisingly well. Some foliage spray may also work. Don't over-feed them with too much nitrogen because that can kill the plants. Slow time-release feed works well for this purpose.
|Good organic feed|
When flower buds are beginning to show up, we can stop the feeding & reduce the water amount. When the fruits are beginning to ripe (the fruit nourishing stage), don't feed them too much. Feeding too much at this stage causes the fruits to turn very dark green. This actually creates some tightening of the fruits & can actually slow down their growth.
For simplicity, you can break down the feeding into three times. It's good to feed before that stage arrives so the plants have some time to absorb & use the nutrients. When flowers start to turn dry & yellow (like hay) on the fruits, we can begin water to keep the plants moist.
|Building up branches|
|Balance for flowering & fruiting|
The amount depends on how young/old the plants are. If it's about to rain, then apply the feed sooner during the third stage. As the fruits ripen, reduce the amount of food so they won't get red eared. Potassium can help the fruit formation & create nice colors.
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