SWISS CHEESE PLANT HAS MATURED
This climbing plant has been growing in my garden for years without much care given. What is it?
Weiliang Lim
The plant is botanically known as Monstera deliciosa and its common name is Swiss Cheese Plant. Having matured, it is producing large, attractive leaves typical of the species.
It can grow along a vertical supportand serves as a visual focal point in a garden.
CITRUS SEEDLINGS NEED MORE SPACE AND LIGHT
My plants are not growing though a month has passed. I water them twice a week, fertilise them with organic chicken manure-based fertiliser once a week, and they get two to three hours of afternoon sun a day. What is wrong?
Lu Chee Choon
It appears that you are growing some citrus seedlings. Their slow growth can be attributed to several factors.
First, they need a lot of light to thrive. Two to three hours of direct sunlight may not be sufficient. If possible, make sure they get at least six hours of light a day.
Next, check that the growing media is loose, aerated and not too moist. Soil that is too heavy or retains too much moisture can prevent plants from producing a healthy root system and absorbing nutrients.
Your current growing media is largely organic matter-based - try incorporating some gritty material such as fine expanded clay pellets or pumice.
You may also want to separate the plants and give each of them more space to grow, as the current conditions seem crowded.
Finally, as the plants grow, feed them with fertiliser that contains other essential nutrients. Chicken manure is rich in nitrogen, but does not have many of the other nutrients needed for your plants to thrive.
MARVEL OF PERU IS A FLOWERING PLANT
I have grown this plant from seeds and it is now about 70cm tall. What is its name and will it continue to flower?
Chua Cheng Hwee
This plant is commonly known as Marvel Of Peru or the Four O'Clock Plant. Its botanical name is Mirabilis jalapa. Several colours are available and the plants are quite floriferous, making them attractive flowering candidates for a garden.
The plant's scented, trumpet-shaped flowers open in the late afternoon and close the next morning, hence its common name.
•Sign up for free gardening talks by Dr Wilson Wong - Growing Mints And Gingers (tomorrow, 2 to 3pm; talk will be live-streamed on the Facebook pages of NParksBuzz at fb.com/nparksbuzz and the Singapore Garden Festival at fb.com/sggardenfest); Preparing Show-quality Edible Plants (next Saturday, 2 to 2.45pm; register at str.sg/3qDE); and Online Gardening Q&A (next Saturday, 3 to 3.45pm; register at str.sg/3qDa).
•Have a gardening query? E-mail it with clear, high-resolution pictures of at least 1MB, if any, and your full name to stlife@sph.com.sg. We reserve the right to edit and reject questions.
•Answers by Dr Wilson Wong, an NParks-certified practising horticulturist, parks manager and ISA-certified arborist. He is the founder of Green Culture Singapore and an adjunct assistant professor (Food Science & Technology) at the National University of Singapore.
