I agree with the advice you've gotten. If HD will give you a refund or credit, please do that and tell them about the insect problem. Then watch your other plants very closely for at least 2 mos. I'm another one who had a smaller one of these but it's been so long that I don't remember what happened. I've had mealies twice. Once they came on coleus from a mailorder source. Fortunately, they did not spread beyond the coleus. Recently I found them on one branch of one of those "fingered" jade plants (Lowe's). Luckily I caught them early, cleaned them off and isolated it and treated it a couple more times. I just did a re-check and it seems fine. I believe they had take chunks from several plants to jam in the pot and only one was infested. I do use systemic insecticides at times but some plants won't tolerate them. May I suggest that you learn what some common pests look like, such as scale and mealies? It won't always keep you safe but it will help. Diana in PA

Dracaena massangeana and a giant cultivar of Spathiphyllum. Joe

Thank you, Brad! I repotted the plants in dry porous mix. I did not see any white web like you described. While I usually hold off watering immediately after repotting. Your advice has now made me realise that for the last lot of plants I bought, I removed the soil from the roots by holding under running water and then potted them up at the end of the day as I was afraid the roots will dry up. Two of the plants ended up having root rot. I guess then using water to remove old soil from the roots is not best practice. Happy growing to you as well! :)

growing trees indoors can be very tricky ... one trick is to use a media for trees.. which is not like yours.. a tree media sheds water and retains less.. as most trees prefer ... they are not water loving houseplants .. you almost treat them like cactus ... the other problem is light intensity ... indoors ... check out a bunch of these ... and learn all you can ... they make it sound like its the easiest houseplant in the world to grow.. so what do i know .... but if you start having issues.. remember what i said .... its the first 2 issues i would wonder about .... ken https://duckduckgo.com/?q=coffee+houseplant&t=ffab&ia=web ps: any green on a leaf means that leaf is still doing its job of converting light into energy... dont go cutting them off because they are ugly ... until it starts putting out new leaves to replace them ... in other words.. ignore your brown edged and boo boos... for now ...