The Q&A Archives: watering requirements for Grevillea Lanigera

Question: I have been losing many of my Grevillea Lanigeras I think from over watering, I livein the So. Califronia coastal region ( Sunset zone 24). I have replanted in mid march - 1 gallon sizes. To get them established, I plan to water every 2 weeks for 2 months and then once established only every 2 months, during the hot months June thru September. We are 3 miles from the ocean and don't often get over 80 degrees.

Answer: Grevillea is a low-water use plant once established so watering deeply once each week to help it become established is an acceptable practice. You can then wean it off of regular waterings, deeply flooding the soil every 30 days during the growing season. Grevillea is susceptible to root rot if the soil does not drain quickly and it is adversely affected by salts in the water. Be sure to amend the planting area with sand or gravel if your soil is too loamy. This will help the soil drain quickly and save your plants from root rot.

Best wishes with your new plants!

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