They want more heat. Just give them time. And try to keep them dry.

Hmmm...I was going to say water them! I think they were planted a little early and agree with Tom that they will do better as it warms up.

Cynthia

Whew! That's good to know. I do know Periwinkle will sit and pout until it gets hot.

We're mostly in the 70s now but the nights are still a bit cool. I had to buy these two weeks ago because the nursery only had 2 flats and I bought one.

Question, since they're still young, how often should I water them?

I agree they want more heat. All of mine are about the same as yours and they are waiting for some heat to go any further.

My Lantanas haven't even sprouted new growth and leaves yet. They are still in their winter dormancy. When they do, I will cut back the old wood. They won't put on new growth until it gets really hot. It is supposed to be hot this week, so maybe yours will perk up.
How often you water them depends upon your soil type. I have very sandy soil, so water them nearly every day in the heat of summer, along with the other plants around them.

I have that same Lantana,mine must be at least 25 years old.One day years ago when i was at work dh hacked it all the way back,i had never done that.I told him it better come back,because if it doesn't i'm divorcing you!!( Not really) Anyway it did come back and thrives on neglect here in S.Calif.It doesn't get a lot of water.and i've never in all those years put any fertiler of any kind on it.

I'll have to go look through my albums this afternoon and show you a picture.
Kathi

Annie, I noticed my DIL's Lantana hasn't done anything either, and I thought maybe it died. Isn't it kind of late for them not to show new growth here in Oklahoma?

Because if I don't see new growth this time next year I'll think they're dead and I'd have to plant something else! lol.

They are just very late in flush out with new growth. They love hot, hot weather, and that includes night time temps. When the heat is steady, they will suddenly wake up and grow like crazy. Tell your DIL not to give up on them.
I can take a picture of mine right now so you can see.

Kati, I don't feed mine either. They do like neglect, I swear! They can grow beautifully in the worst soil you could have. When we bought our rent house in town, there were several Lantana bushes growing in the front yard. That soil was compacted, hard as a rock and dry as a bone, yet those bushes came to life and grew without any help from us the following year and bloomed beautifully. Mine do best if I don't pamper them or water them, but I feel guilty. The two farthest out in the garden seldom get watered and they grow great and bloom beautifully. I do weed around them, but that is all.

There is a difference between plants that tolerate drought that have become established and ones that are newly planted. I don't think any young plant enjoys trying to put down roots in an inhospitable environment.

You say these have been in the ground for two weeks. That is infancy! Is your soil well drained? I hope so because lantana does not like to stand wet. If it is well drained, you probably need to water them a bit more often. The plants look nice except for a bit of wilt. Color is very good - I see no sign of pests. If your soil is not well drained (clay?) you will have to be careful. But the plants will still need more water than if they had a good root system.

As much as I hate to do it I would also suggest that you nip off the flowers for now so that the plant's energy can concentrate on the roots. Yeah...I probably couldn't do it either. :(

My lantanas are dieing they have spider like cobwebs on them are they spider mites? if so, what kills them? nothing ive tried has worked even; tried Neem oil; still dieing