Where do I get spring fruit seeds?

[buoyant spire]

I need to ship bronze vegetables and fruit. I can buy veg seeds froim Sam but where do I get spring fruit seeds?

[meager heron]

Spring fruit is unlocked at rank e or d. I can't remember off the top of my head. There's fruit at rank F in summer though

There's no time limit to that quest so don't worry if you have to wait till summer. Most people do