Zygopetalum maxillare - Zygo Orchid

Native to South America, Zygopetalum maxillare is another remarkable species in the Zygopetalum genus, renowned for its fragrant, intricate flowers that bloom in late winter or early spring. With its distinctive purple hues and striking lip shape that resembles a human jaw, this orchid offers a unique visual appeal. Maxillare thrives in similar conditions to its relatives, preferring bright, indirect light and a well-draining growing medium. It is known for being a hardy species compared to other orchids, making it a good option for intermediate growers looking for a fragrant, eye-catching addition to their plant collection.

Important Note We have tried to identify these orchids but please note that we are doing this by eye and comparing the plants we have in the shop to photos online. The orchids might arrive with the flowers open or closed. 

Scientific Name
Zygopetalum maxillare (yoked-petal plant with a jaw-like lip)

Synonyms: Zygopetalum gautieri, Zygopetalum graminifolium, Zygopetalum hasslerianum, Zygopetalum mandibulare, Zygopetalum obtusatum, Zygopetalum rigbyanum, Zygopetalum sanderae, Zygopetalum sanderianum, Zygopetalum silvanum, Eulophia maxillaris

This orchid has been falsely identified under quite a few other scientific names, including Zygopetalum mandibulare and Eulophia maxillaris, but the current name is still accepted, having first been used in an 1832 paper.

Common Name
Zygopetalum Orchid, Zygo Orchid, Purple Orchid, Chin-Bone Zygopetalum

Origin
Native to humid forest areas in Southeastern Brazil and Paraguay

Light
Zygopetalum maxillare thrives in bright, indirect light. It prefers to be in a location with sufficient light without direct exposure to the sun. A west or east-facing window with sheer curtains is ideal for providing the right balance of light. It will benefit from a couple of hours of morning sun during its autumn and winter dormancy period, though.

Water
Water regularly but ensure good drainage. The top third of the soil should dry out between waters, and the pot feel lighter when picked up. Over-watering can lead to root rot, so it’s make sure to keep moisture and air circulation balanced.

Humidity
This species prefers moderate to high humidity levels (50-70%). Keep the air around the plant moist, particularly when the heating is on, by using a humidity tray or placing the plant near a humidifier.

Soil
Plant in a well-draining orchid mix, such as one designed for epiphytic orchids. A mix of bark, perlite, and coir is ideal to promote healthy root growth and prevent rot. Repot every 3-4 years as the plant grows; repotting at this frequency will mean it stays a little potbound and is more likely to flower.

Food
Fertilise with a balanced orchid fertiliser every 2-4 weeks during the growing season (spring through summer). Reduce feeding in the winter when the plant is dormant. You can supplement this with a foliar orchid feed in Spring but make sure not to overdo it and keep an eye on the instructions for your specific fertiliser.

Temperature
Zygopetalum maxillare grows best in warm temperatures, ranging from 18-24°C during the day and slightly cooler at night. Avoid exposing it to temperatures below 12°C.

Pet-Safe
Yes; orchids are generally considered non-toxic to pets. It’s still best for the plant and your pet to keep Zygopetalum maxillare out of reach, though.

Sprouts Top Tips
Flowering: This species blooms in late winter or early spring. To help encourage flowers, ensure the plant receives enough light and is kept in optimal humidity conditions. Avoid disturbing the plant during its flowering period, as this may disrupt its growth cycle. It will also benefit from having a dormancy period in autumn and winter, with lower temperatures, less fertilising and some weak sunlight being introduced.