Were they all 3 C. fosterianus, or 3 different varieties, Bob? If they were all the same, that is odd. 28" is a big honkin' Crypt!

It does make a difference where you grow them and what media you use. I've had what I thought were fairly small varieties get huge when I switched them into straight peat substrate rather than sphagnum moss (and they were bigger in the sphagnum than in regular potting soil), but I don't think even my biggest one was quite that big!

Hi Lisa. All 3 were the same variety of fosterianus,and had just arrived from the grower at Home Depot.There were eight in the box,and I picked the best three.I left them in the same pot and soil,until the one in the photo got so big,that I repotted it using a mix I make up of peat moss,sphagnum,perlite,and some sand,with a little Osmocote added.I may take another photo,as that one does not do it justice. I usually do ok with crypts,growing them under flourescent plant lights indoors,and under shadecloth outdoors in the summer.But this one really took off. Bob

Here is a photo that better compares the sizes of the two remaing plants,as discused above. The smaller one is now a different color from being in very bright light conditions outdoors,sometimes in dappled sunlight.The larger,was in outdoor light shade to dark shade at times. As they were exactly alike at first,I'm now wondering if they may be different varieties of Fosterianus. ???
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Crypts do prefer lower light conditions, but I'm wondering if that's all it is. Did you feed both of them equally? The reddish-brown one is more the color I usually associate with C. fosterianus, but as I say, conditions can make a huge difference. Hard to say if the one on the left is the same or possibly a hybrid. Apart from 'Elaine', I'm pretty sure there's only one variety of fosterianus, but there's a zillion hybrids of it.

Yes,all received the same care and feed. so thats why I was surprised at the outcome.I assumed that they were all the same Fosterianus,as they were together in the same grower's carton that just arrived at HD when I was there.But its possible that they were shipped together,and did have different origins,or were a mixture of the 'zillion' hybrids you speak of.The redish-brown one was not doing so well(soft droopy leaves),but made a nice comeback when placed outdoors.