Harvey runs the medical clinic in Pelican Town and is a marriage candidate. His birthday is Winter 14, which makes Winter a good time to plan a high-value friendship gift in advance.
Loved gift examples
- Coffee
- Pickles
- Super Meal
- Truffle Oil
- Wine
Simple friendship strategy
Choose one practical gift that fits your farm or daily routine and keep a small reserve. Coffee is easy to remember, while processed goods such as Pickles or Wine may fit farms that already use machines regularly.
Birthday preparation
Check the calendar near the start of Winter and set aside the gift before day 14. Keeping birthday items separate from normal sale inventory makes it less likely that you accidentally ship them.
What to do if a loved gift is inconvenient
Do not interrupt the rest of your farm just to force one difficult item. Use a reasonable alternative, keep interacting with Harvey when convenient, and save the best gift for his birthday.
Source: Stardew Valley Wiki.