Aloe vera plants are fairly simple to grow in the right conditions though they do take time like all plants do. I bought mine last year I want to say and it was a bit on the small side, it wasn't until late last year when it finally started to grow big and it's still growing. They don't need much water, but im unsure where you are located. Are you in Canada or the U.S.? If you're in Canada you may want to invest in a garden lamp since it snows there so much im not sure the sun would shine on it much, but i could be wrong on that.
Im not too sure about aloe use for hair tbh. Ive only used it on cuts, rashes, sunburns, scars and blemishes. I honestly would consult with your husband's dermatologist before putting aloe in his hair because you really don't know what could happen. But i will tell you this about aloe though...real aloe smells nothing like the ones you get in the premade bottles at the store. It's not lime green and it doesn't have that sweet smell that smells great...those are the chemicals they add into it to make it look and smell that way. Real aloe has a slight odor to it and a yellowish green sap when it's cut. Don't let that discourage you from growing it though because it is a really handy plant to have and it looks beautiful. Good luck with everything!
