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Bob Morris

Bob Morris

Bob Morris is a horticulture expert living in Las Vegas and professor emeritus for the University of Nevada. Visit his blog at xtremehorticulture.blogspot.com. Send questions to Extremehort@aol.com.

Does woody ‘rash’ on cactus indicate a problem?

Older streaks are from the accumulation of suber, or corky tissue. These “rashes” also may happen when a cactus is damaged by disease.

Would peat moss work in place of compost?

Compost and peat moss are added to soils for similar reasons, but the addition of compost provides a lot more nutrients to the soil.

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