How to grow Philodendrons in Australia

The philodendron is a must-have houseplant in Australia. With its big, bold foliage, this plant adds an instant tropical charm to any indoor space. Philodendrons are easy to care for and can adapt to a range of environmental conditions, making them ideally suited for Sydney’s humid, subtropical climate. Philodendrons can grow up to three metres in height and are available in multiple vining and non-climbing varieties. 

Here is everything you need to know about how to grow and care for philodendrons in Australia!

 

Temperature and Light

Philodendrons grow best in sheltered, shady locations that offer protection from extreme weather conditions. If kept indoors, ensure your philodendrons receive bright indirect light and are not exposed to temperatures below about 15°C. A partially sunlit spot near a window will likely be your best bet, as long as the plant isn’t at the receiving end of strong winds from outside, or cool drafts from air conditioning. 

Philodendrons are also very happy when grown under a canopy or in a greenhouse. Keep an eye on the leaves of the plant to monitor whether changes in temperature or light are needed. Drastic yellowing of the leaves may indicate that the plant is receiving too much direct light, while poor growth coupled with long, leggy stems could be caused by a lack of light. 

 

Soil

Like most indoor and shaded plants, philodendrons need soil that is rich in organic matter and provides proper drainage. Opt for loose potting soil that will retain moisture without oversaturating the root system. It is important to repot philodendrons regularly, and replace the soil to encourage healthy growth and prevent salt buildup, which can lead to leaf browning and yellowing. If roots start growing out of the soil or the draining holes, it is definitely time to upgrade the pot size. In most cases of indoor plant care, early spring is the best time to repot container plants since their growth slows down during the colder months. 

 

Planting

Philodendrons are easy to grow from seed and stem and can be propagated without any problems. When growing philodendrons from seed, plant the seeds about 5 cm apart and less than 1 cm beneath the soil in a small or medium-sized container. Cover the pot with plastic and remove it occasionally to spray water and allow the soil to breathe. Philodendron seed germination is a slow process and can take as long as eight weeks. Once the seedlings have sprouted and started to develop root systems, they can be replanted into their own containers. 

Growing philodendrons from stems is a much quicker and easier process. Philodendrons can be propagated by removing healthy stem cuttings from just above the leaf node and placing them in water to develop roots. After about two weeks, the cuttings should be ready to be transferred into a soil planter. To boost their growth, liquid fertiliser can be used on philodendrons monthly during spring and summer and about every six to eight weeks during winter and autumn. 

 

Water

Philodendrons need sufficient moisture but are at risk of developing ailments and diseases from overwatering. Always allow the top 2 to 3 cm of the soil to dry out in between waterings. Depending on the temperature and light conditions, your philodendrons will likely need to be watered about once a week during spring and summer and less frequently during winter and autumn. 

A philodendron’s leaves offer a good indication of their water and humidity needs. Yellow and drooping leaves are caused by too much water while wilted leaves are a symptom of underwatering. Although this can easily be treated by adjusting the watering schedule, stems that turn soft or black may point to more serious concerns like root rot or fungal disease. To maintain humidity levels in dry climates, mist the leaves every few days with water or place the container on a tray of pebbles filled with water (be careful not to let the bottom of the pot sit in the water).

 

Maintenance 

Philodendrons are easy to care for and require very little maintenance. Aside from repotting the plants as needed, the only maintenance needed is removing dead leaves and keeping the foliage clean by gently wiping any dust and dirt away with a damp cloth. While philodendrons are not at major risk of pests or other common diseases, it is recommended to keep an eye out for mealybugs, scale and spider mites, which can be treated with natural insecticidal soaps. If you’d like to prune your philodendrons, wait until spring or summer to cut back any overly long or leggy vines with clean pruning scissors. 

 

Spring Colours is a plant nursery located in Sydney’s Dural neighbourhood. With over 30 years of experience in garden landscaping and delivering high-quality plants to plant lovers at great prices, we are committed to making the world a greener place and adding new life to your home and garden. 

Contact us to find out about our wholesale service delivery or visit our store in Dural to browse our collection of plants!