How to add height to fern bed??

Add taller growing, colorful perennials or annuals that like partial sun, recommended for your growing zone. Have you considered relocating ferns to more shaded area? Overhead watering is discouraged in hot weather, to avoid sun scald.

Watering from the base is definitely more tedious, but the plants really benefit from your efforts! This part of the country is seeing an increase in hot, dry Summer days, and the effects of overhead watering have taken a significant toll in the landscaping. Good luck with your ferns! Let us know how they do☺.

My ferns grow 3 feet tall and I use Delphineums for colour. I have to thin the ferns because they will take over the planter. These ferns are against a fence on west side of yard. The north side grow 1-2 feet.

what about the old fashioned tall day lillies...first their blooms have a variety of lovely colours...old orange is so old..second the leaves die down to nothing when they are done..they are basically maintenance free...pop either mature plants in place in the spring, or if you can locate bulbs, plant in the fall....and be amazed in the Spring....just one negative, just how deep is the shade..your picture doesn't give a clue...cheers

Yes, that is generally true, but this excessively hot weather is causing many plants to sun scald if watered from above. The fern's fronds absorb water through the air, as well, so given that water evaporates, the ferns fronds will absorb the humidity caused by ground watering.