Does anyone have a Sago Palm that has two sizes of fronds? I have this one that came with the shorter lengths and last year, after I set it out in the sun for a month in the summer, it grew 3 new fronds that are really long [ 19" ]. This year I did the same sun exposure to get new fronds and I got these two short ones [ 9" ]. I rather expected more long ones. The two sets of growth even developed differently. Anyone else have this experience?

Yup! I get those too at times. But I have learned to give it a bit more water when it is growing the leaves in full sun, seems to help it a lot. On the other hand, I leave my Sago outdoors year round, so it may have learned to adjust to whatever light levels it gets. Give it a bit more time, it may still lengthen, it just grows slow. It really likes the sun.

Thank you for your response, I am sure your palm gets more heat and sun than mine can in your zone, being here in Montana, it is already past time to set plants outside here.

This plant I had for about 3-4 years before I started putting it in the full sun outside in the summer, it never grew at all in those first years, but has gotten into it since I have been giving it the sun treatment during the summers. I give it lots of water in the summer, not so much when it is inside. It will be interesting to see what it does next year, maybe long fronds again.