13 Plants that you can easily grow in your balcony and roof:
1. Aloe vera
The advantages of aloe vera are renowned. Needless to say, this easy to keep plant has the whole bunch of benefits starting with beauty and ending with medicinal uses. It can cure the wound, acting as a toner, ease sunburn, and has antibacterial properties.
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2. Periwinkle
Plant these during spring of fall. After which, water it well. And for the first few weeks, keep the soil moist. If you keep removing weeds and keep the soil well-drained, the chances of pests and other diseases get reduced. Perwinkle is an invasive species. Once it becomes established, the plant is difficult to get rid of. So make sure you plant it in an appropriate area.
3. Datura
The seeds are easy to maintain. If you notice, that the flowers are drooping, it is likely because they are not getting an adequate amount of moisture. If you are growing Datura in pots, you will have to re-pot them annually. During winter, they might lose leaves but they grow back during the summer season. You might consider moving them inside during colder climates or put in a place with adequate sunlight. If the plant grows beyond your ken, you can consider staking.
4. Cactus
Online, you might come across cactus specific potting soil. Mix this with perlite or lava rock pebbles. Again, both of these can easily be found online. Moisten the soil after you have planted the stem. Make sure not to soak the soil. Consider a spray bottle if you are unsure. Do this only when you feel or think that the soil is dry. Keep it in an area where there is a lot of bright and indirect sunlight.
5. Money plant
If you are going to grow the money plant in jelly, use a glass jar. Being a temperate plant, it can deal with a variety of conditions except for winter. It can grow well in a wide variety of soil but the best is loamy soil at a pH of 6.0 to 7.5. Both direct or indirect sunlight works for money plant but not too much sunlight. Keep it sun for only two to four hours. Use sand as potting soil. Money plant likes humidity so dry the soil between watering sessions. Do not overwater the plant unless you want the root to rot. If the roots emerge out of the pot, it is time you prune or change the pot. Repot the plant every two years or so.
6. Spider Plant
During initial growth, you will have to water them occasionally. But after they have become established, reel back a little and water them to in a moderate amount. Try not to let the soil dry though. These plants work best in moist conditions. Fertilization should be done twice a month (but not more) during spring or summer. If you want more spider plants, you can use the pups (or offsets) which have reached 5.08 cm in size and plant it. Or keep the still attached pup into a nearby pot filled with soil. Once they have established themselves, feel free to detach them from their mother.
7. Marigold
The plant is much before winter or after the winter season. They require full sun so keep it at a strategic place where lots of sunlight reach. If that is not possible in your balcony, consider investing in some grow lights. You will have to water it regularly. For compost, go organic or well-aged manure. The soil should be moist. That does not mean it should be wet all day round. Sow the seeds and then cover it with a layer of soil. After which, water it. Keep the plants 20.32 cm to 45.72 cm apart.
8. Snake plant
They can survive low light conditions, drought and can survive through a lot of insect attacks. These also keep the air clean by removing formaldehyde and benzene. You can grow it from leaf cuttings in free-draining soil. The easiest method is dividing. Let the root produce rhizome, remove it and pot it. Now put them under indirect sunlight with just a little amount of water.
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9. Snapdragon
There should be no grass or rocks in the soil. Compost will help the plant grow well and you can do this at any time of the day. Make sure no weeds are growing around the plant as they compete with plants for nutrition and water. The plants should 30.48 cm apart. Until the plant grows, keep it protected from wind and direct sunlight. Snapdragons produce flowers during winter. So they are a great option to add colour to your garden during the cooler months. While taller plants are long-lasting, you would have to consider stake them.
10. Peace Lily
While these do not require pruning, do remove the unhealthy leaves. If you want to fertilize, use a 20-20-20 plant fertilizer at one half of the recommended strength in summer. If the plant becomes too big for the pot, you would have to report it. Repotting of peace lily should be done one or two years. For soil, go for a peat-based one which has composted bark with no odour.
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11. Lavender
These do not prefer moist, wet areas. Consider using rocks to keep weeds away. You have to water it once or twice until the plants have established themselves. After which you will have to water them every two to three week. And when buds appear, water them once or twice weekly.
12. Azalea
To prevent weed, add pine straws as mulch. If you add organic matter and mulch, frequent fertilization will not be required. Make sure the soil is rich in nitrogen, though. Once the blooming period has expired, trim these plants.
13. Weeping Fig
It does not like to be moved from here and there. So allocate a specific, permanent place. For soil, go for a well-drained one. While repotting, add perlite, sand and vermiculite. Weeping fig needs to be kept in moist condition but standing water. The watering schedule should be strictly followed.