When to fertilize citrus

My grapefruit tree and mandarin orange are coverrd in blooms, improved meyer lemon just yellow and struggling. Is it ok to fertilize the bloomers now??

I did just fertilize, with citrus fertilizer, mine were budding out as well

Thanks

Why is your Meyer yellow? Have you checked roots or overwatered? They like water, but need not to sit in the water, yellow sounds drowned.

Kitt,
When it got cold, I brought a new, potted, Improved Meyer Lemon into the garage for about a month. It was covered in blooms, but, by the time I put it back outside (about 6 weeks now), they had all fallen off.

It has settled down, and is covered in buds, again. I've been watching it carefully for bud/bloom drop, but so far, so good.

I've fertilized it twice since I put it out again. Anything else I should do?

Thanks!

Linda

Think they just like water, fertilizer mine only gets 2x a year, but I am using a citrus fertilizer granule form, and it just got repotted in citrus soil, so, just water and drainage and sunshine.