I have read that the color of the bloom is a dark pink but this is the one that is being sold in No. California nurseries as Grevillea 'C...Read Moreollaroy Plateau.' I have inquired about the color difference and have been assured the pictures I have submitted are indeed Grevillea sericea 'Collaroy Plateau.'
Grevillea sericea 'Collaroy Plateau' is a very adaptable grevillea. It puts on a long flower display from winter (best) into summer(less). So it really perks up a winter garden. More compact than Grevillea sericea, it seems to be a better garden variety. Grows best in soil that is nutrient poor, mineral rich with great drainage and little summer water unless in very hot climates.
Grevilleas come in many different shapes and sizes from ground covers to trees. They can be separated by flower form; erect clusters, pendent clusters, cylindrical spike, toothbrush type and the soft feathery spike. Grevillea sericea 'Collaroy Plateau has the erect clustered blooms.
The thing most share is their prolonged blooming season and their honey nectar that attracts many hummingbirds to them making for a very entertaining garden plant.
Due to their succulent 'proteoid' roots, they can withstand some neglect too and also this helps if you decide to use them as a container plant. Also their ‘proteoid’ roots will seek out nutrients in soils that are very lacking in them like their native Australian soil. Grevillea are great for climates with little or no water in the summer.
As with all protea, beware of fertilizing. Most do not need it at all in our rich soil. If you do fertilize, make sure your fertilizer has no phosphorus. Never add any type of phosphate to your soil for it will slowly poison your grevillea as it does all protea.
They prefer a very well draining sandy soil that is acidic and which is low in nutrients.
I have read that the color of the bloom is a dark pink but this is the one that is being sold in No. California nurseries as Grevillea 'C...Read More