Buphthalmum Plant Growing & Care Guide for Gardeners
Article by Dean Ravenscroft, Ph.D. - Updated 20th Oct 2023
In this Gardener's HQ guide, we'll explore cultivating Buphthalmum plants in your garden, indoor spaces, and other settings.
- Plant Characteristics: Buphthalmum, known as the'Ox-eye', boasts cheerful, sunflower-like blooms of blue or purple flowers. They are great for brightening up borders.
- Ideal Growing Conditions: Plants thrive in full sunlight, and prefer well-draining, moderately fertile soil.
- General Care: Water moderately, ensuring that the soil doesn't dry out completely. Deadheading can promote prolonged blooming.
- Tips for New Gardeners: Buphthalmum is an excellent choice for beginners due to its robust nature. While generally low-maintenance, it's good to monitor them for occasional aphids.
Ox-eye Daisy, and Sun Wheel: Cultivation & Garden Use
Plants of the Buphthalmum genus are more often known by the common names of Sun Wheel, Ox-eye or Ox-eye daisy.
They make ideal border plants.
Buphthalmum salicifolium (Yellow Ox-eye Daisy) by Breki74.
How to Grow Buphthalmum
If planning to grow Buphthalmum plants outdoors, then seeds can be sown on the surface in either the spring or the autumn.
When indoors first, then they should be grown in the light at a temperature of 70 to 73°F (21 to 23°C). Seeds should take from two to four weeks to germinate.
Seedlings should be planted out in mid-spring (once a frost is no longer possible). Locate into a sunny or lightly shaded area of the garden that has a moist but well drained soil. Ideally with a pH of 6 to 8.
They should be planted at between 20 and 30 cm (8 to 12 inches) apart.
Buphthalmum Plant Care
Buphthalmum are easy to look after, though taller varieties may require staking to protect from wind.
Buphthalmum Ochsenauge by Hans-Jürgen Becker.
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Buphthalmum Growing and Care Guide
Common Names: Ox-eye Daisy, Sun Wheel. Ox-eye: Willow-leaf; Yellow.Family: Asteraceae, the Asters.
Life Cycle: Hardy perennial.
Height: 12 to 24 inches (30 to 60 cm).
Native: Europe, Asia.
Growing Region: Zones 3 to 8.
Flowers: Summer.
Flower Details: Yellow. Daisy-like ray and disc florets. Fine petals.
Foliage: Herbaceous. Elliptic to Lance-shaped.
Sow Outside: Surface. Spring or autumn. Spacing 8 to 12 inches (20 to 30 cm).
Sow Inside: Germination time: two weeks to one month. Temperature 70°F (21°C). Sow in early spring. Transplant outdoors following the last frost.
Requirements: Full sunlight or light shade. Good drainage. Soil pH 6.5 to 8.0. Moist soil, limey soil, poor soil. Provide support. Thin out. Propagate: dividing in the spring or at the start of autumn.
Common Questions
How many members does the Buphthalmum genus have?
The Buphthalmum genus has about 3 species.
Do members of Buphthalmum make a good garden or landscaping plant?
Yes, Buphthalmum is appreciated for its daisy-like flowers which add charm to gardens and landscapes.
Which Buphthalmum species are most frequently grown by gardeners?
Buphthalmum salicifolium (Willow-leaved Ox-eye) is the most commonly grown species in gardens.
Are members of the Buphthalmum plant genus fragrant?
No, Buphthalmum plants are not known for their fragrance, but they are cherished for their bright flowers.
What is the perfect location to grow Buphthalmum?
Buphthalmum prefers a location with full sun and well-drained soil.
Is Buphthalmum invasive in the USA?
Presently, Buphthalmum is not considered invasive in the USA.
How do I remove Buphthalmum plants from my garden?
To remove Buphthalmum, dig up the entire plant, ensuring to remove all the roots to prevent regrowth.
Summary
The Buphthalmum genus is a part of the Asteraceae family, originating from Europe. These hardy perennials are known for their daisy-like flowers that add a bright, cheerful touch to gardens in summer.
To cultivate Buphthalmum, plant them in full sun to partial shade, in well-drained soil. They can tolerate various soil types, including poor soils, making them a versatile choice for many gardeners. Plant in the spring or fall, and ensure consistent watering for optimal growth.
I hope that you enjoyed this guide on how to grow Buphthalmum. You may also enjoy the following growing Aster family growing guides: How to grow Tahoka daisy and Helianthus plants.
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