Hi Krishi,

They seem to grow better when they're under potted so if there's around 1" between the edge of the bulb and inside edge of the pot, it should be fine. I made the mistake of over-potting mine in the past and almost killed them :-(((

It is difficult for me to tell the size of your pot from the photo, Krishi. Is it about 12-14" wide at the top? The smaller bulb appears to be quite a bit smaller than the larger bulb, so I think they would be fine together in your chosen pot. I prefer pots that don't taper quite so much, but your bulbs should be ok for a while.

However, I have had the opposite experience from Fred--the bulbs always seem to divide and fill in my large pots too quickly. I usually use 18-24" wide ceramic or clay pots, but have a couple in 12" plastic pots and many growing in the ground. I use a potting mix with quite a bit of perlite mixed in for all of my potted amaryllis.

When I divided the packed-with-bulbs 20"w x 17"h pot, and replaced only three bulbs in it, I thought it would be good for quite a while. The roots extended throughout; 17" is definitely not too deep a pot. 18 months later, the pot is packed again; that pot of bulbs produced 16 flower stalks this spring.

The plastic potted ones seem to be fussier about overwatering. I try to move them on after the first year. The current residents are two bulbs per 12" pot, planted around Nov 2017, and I can tell they will need to be moved up, or put in the garden, as soon as the foliage dies back. Should have done it last year, but I procrastinated and they got ahead of me by starting their growth before I got around to it.

Are we talking Amaryllis or "Amaryllis"? I grow mine in the ground.