|1||15C+||Indoor||Grow as a houseplant or under heated glass.|
|2||10 to 15C+||Indoor / Outdoor||Grow indoors, or outdoors in summer in a sheltered spot|
|3||5 to 10C||Tender||Grow outdoors in summer, and in a heated glasshouse in winter.|
|4||1 to 5C||Tender||Grow outdoors or under glass without risk of frost.|
|5||-5 to 1C||Half-Hardy||Hardy in coastal/mild/sheltered areas. Will not tolerate hard/sudden frost. May require winter protection in situ. such as fleece or straw mulch.|
|6||-10 to -5C||Hardy||May suffer at altitude, central/northerly locations, harsh winters, cold gardens and when grown in pots.|
|7||-15 to -10C+||Hardy||Will survive most severe winters but may be at risk in central/northerly locations and in pots. Top growth may be destroyed but will usually re-grow.|
|8||-20 to -15C||Hardy||Will survive severe winter, but may need protection when grown in pots.|
|9||-20C & Colder||Very Hardy / Hardy||in the severest European climates.|
19 In stock
Originating from Australia
Grevillea juniperina f. sulphurea is an evergreen, low spreading shrub with fir tree, needle-like bright green leaves. Clusters of rich golden yellow flowers are massed along the stems and are produced throughout spring and summer. This is one of the hardiest of all Grevilleas.
Grow in poor, well-drained, acidic soil in full sun.
Height and spread after 2 – 3 years 30cm x 80cm
Semi mature height and spread after 5 – 6 years 40cm x 1.5m