Are these dead?

[Redbird]

I brought my plants up from 2nd shelf in pond after the pond thawed out and they started growing vigorously but then we had a drop in temperature for a few days well below freezing and I noticed they haven’t been growing ....this is what they look like (brown tops) Are they dead or will they come back?

 

[mrsclem]

As long as part of the plant is still green, I would say it will recover. If you have any more really cold weather forecast, I would drop it back down.

 

[Redbird]

As long as part of the plant is still green, I would say it will recover. If you have any more really cold weather forecast, I would drop it back down.

I have these grasses or iris plants an inch or so below the waterline should I have the crown above the waterline what are your thoughts?

 

[bagsmom]

If they are yellow flag iris, they should be fine as they are. I have a clump that has spread like crazy and the corms/rhizomes/bulbs (not sure which is the correct term) are blooping out, down, up and around. They are in different depths - some just below the surface and some completely out of the water! You may have a different situation, though, being up in such a cold part of the country! (We were 83 today!)

 

[mrsclem]

Mine are in my bog, crowns at water level

 

[GBBUDD]

Just about Every plants that over winters that does not have limbs or branches will have brown tips from the cold.