This was my first Grevillea and when purchased it was only about 6 inches tall and wide. It quickly showed how much it liked the conditions here on the Oregon coast. Within a year it had outgrown what its mature size was meant to be. This means that it has to be quite severely pruned every year to keep the path accessible. Since then I have seen it reported to be up to 6′ wide, and that seems more accurate to me. Height so far is 18″ or so.
It has needle-like foliage that can be irritating to people with sensitive skin. If you find that to be the case, wear gloves when weeding around it or pruning. Most of the year it has pink and white curly flowers in loose clusters. Blooming is in waves of concentrated, with a peak in late winter and early spring. The bees and hummingbirds love it and since it is around when little else is blooming, that alone makes it a valuable garden plant.
The parentage of it is unknown and possibly a cross-species hybrid.
Pronunciation: grev-ILL-ee-uh joo-nip-er-EE-nuh
Species Meaning: juniperina – meaning Juniper-like
Grevillea juniperina is native to Australia.
Grevillea are members of the Protea family and thus have some specific requirements. They must be planted in very well drained soil and after watering for the first year to get established, they should not be watered after that unless conditions are extremely dry. As much sun as possible. They should never be given a fertilizer with Phosphorus in it (the middle number in NPK), and they dislike root disturbance so be very gently with them.
The coldest temperature it has seen so far is 23F so that puts it to be at least hardy to 9a, and possibly better than that given that ones in pots saw no damage.
The ones in the portal and those in the hell strip are in some shade, so it will be interesting to see how they do in terms of flowers. 11/21 Update – they are budding at the moment, so I do expect them to continue blooming with shade, possible just a little less so.
I have had quite a lot of luck with cuttings – which is where all of the others that are planted in the garden have come from.
In Our Garden
Plant ID: P19002
Gondwana: Two in the hellstrip
Down Under Up Top: To the left descending the stairs.
Portal – right side of portal when descending.
We acquired this plant from Xera Plants.
Related PostsGardener’s Log – March 2021
What is happening during March at Oceanside Garden.