why are these leaves starting to turn yellow on my Desert Rose. the rest of the plant looks fine and is starting to get new growth.

Too much or too little water

just so you know ...adenium leaves are deciduous with cooler temperatures, changes in moisture & changes in lighting

The soil is dry up to the top of my index finger. I watered it last Saturday. Do you think I should water it today. Thanks

does the plant stay outside or inside ?

Outside during the day. I take it in at night.

at night - how cold does it get where you are ?

some nights in the 50's . I am afraid that if it rains over night the plant will get too much water. I keep it on the deck and the deck is not covered.

I would leave your plant(s) outside ..... a few hours at or slightly below 50° is safe .... temperatures around 45° is risky ...temps at or below 32° is fatal

water thoroughly today ...then once every 7-10 days or so .... if it rains, count as a watering day

as temperatures climb above 90° step up watering - water once every 5-7 days or so ...temperatures around 100° water once every 3-5 days

Thank's for your help. will water today and keep it outside.