After Freeze Plant How-to Guide

BUT

I received this email from the Natural Gardener today and it has some great information about how to care for them post freeze.  Enjoy and know we are always here for anything you need.

Our first step is to remove things that are black, mushy, or obviously broken. Prune the plant back to healthy growth (using the scratch test to determine) with clean pruners as soon as possible, or remove it entirely if it cannot be salvaged. These trimmings are safe to compost.

Citrus trees are more or less cold-tolerant depending on the variety; see our Guide to Citrus Trees to determine the cold-hardiness of your specific tree(s). Most citrus trees have been grafted onto a rootstock, so if your tree comes back below the graft, it won't be the same variety as when you purchased the tree, and likely will not produce desirable fruit. These trees should be replaced.

Some rosemary varieties are more cold-hardy than others. Tuscan Blue, Barbeque, and Huntington Carpet are all for zones 8-10 and will have suffered more damage than varieties like Arp, Hill Hardy, or Blue Spires which can grow in Zone 6. Wait a couple of weeks to assess the damage. 

If only the tips were hit, you could shear the plant back and it can recover. However, if the damage is deeper into the plant, it may need to be replaced. Rosemary rarely pushes new growth through its tough, woody old growth stems, and a mature plant will struggle to recover from extensive damage.

Esperanza, or Yellow Bells, forms woody stems but should be cut all the way to the ground whether or not we have a freeze. If the plant was sufficiently protected it may still return from the roots.

Remember liquid seaweed is a great tonic for plants. It helps plants recover from a wide range of stresses, including cold damage, transplant shock, heat stress, and more! Give your plants a dose to help them bounce back sooner!