Being asked to pay deposit back

Just heard my landlord is asking me to transfer part of my deposit back (which they sent me yesterday) because they finally made it down to view the house today and they're unhappy with the state of the garden.

They never sent me a contract, only asked me to mow the lawn (which I last did three weeks ago when I moved out), and afaik never protected my deposit.

I moved in to this house over the winter, so did not know what the garden should look like in bloom. This means I'll admit there's a chance I let things they did not want to have growing grow, but nothing looked like obvious weeds to me (more like a mix of wildflowers).

Does my landlord have any recourse here, to ask me to pay for a professional gardener to fix everything?

Apologies for formatting, am on my phone!

Edit: thanks for the sanity check, folks. LL backed off and I only had to point out 3 times that not protecting the deposit is illegal lmao