Troubleshooting
Krossa Regal Hosta problems — and how to fix them
Krossa Regal Hosta (Hosta 'Krossa Regal') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Loss of blue colour
The blue is a waxy coating that melts in heat and washes off under overhead watering. Grow in shade and water at the base to keep the frosty bloom.
Slug and snail damage
The thick, waxy leaves resist slugs better than most, but young foliage is still vulnerable. Protect emerging shoots in spring.
Crown rot
The large crown rots in heavy, waterlogged soil. Plant in free-draining ground enriched with grit and avoid standing water.
Floppy or uneven habit
In too much shade or poor soil the upright vase shape can splay. Give it adequate light, steady moisture, and good feeding to maintain its form.
Prevent krossa regal hosta problems before they start
Most krossa regal hosta issues are care-mismatch, not bad luck. Dial in the basics:
Looking for krossa regal hosta in general rather than its problems? Read the full krossa regal hosta care guide — light, water, soil and feeding.
Krossa Regal Hosta problems — FAQ
Why is my krossa regal hosta loss of blue colour?
The blue is a waxy coating that melts in heat and washes off under overhead watering. Grow in shade and water at the base to keep the frosty bloom.
Why is my krossa regal hosta slug and snail damage?
The thick, waxy leaves resist slugs better than most, but young foliage is still vulnerable. Protect emerging shoots in spring.
Why is my krossa regal hosta crown rot?
The large crown rots in heavy, waterlogged soil. Plant in free-draining ground enriched with grit and avoid standing water.
Why is my krossa regal hosta floppy or uneven habit?
In too much shade or poor soil the upright vase shape can splay. Give it adequate light, steady moisture, and good feeding to maintain its form.