Can I only buy it in season?
The guide gives its timing as: Nakhon Nayok harvest listed as January–March. The harvest period can vary with the growing area and the variety. The calendar does not guarantee that it is on sale on any particular date.
Mayongchid / Marian Plum · มะยงชิด
If you see a small yellowish fruit that looks like a mango in Thailand, ask whether it is mayongchid. It belongs to the plum mango group, and Nakhon Nayok’s mayongchid is presented as a regional GI fruit. If you would like to try a fruit different from big mangoes, look for it in winter and early spring.
Nakhon Nayok harvest listed as January–March
Harvest period listed for the regional fruit
Use the main season, or the harvest period for regional fruit, as a guide. Actual availability can vary with the growing area, the variety and the weather.
Nakhon Nayok mayongchid is presented as having sweetness and sharpness together, with crunchy flesh. Take out the stone in the middle and eat.
The Tourism Authority of Thailand presents Nakhon Nayok’s mayongchid as a regional GI fruit. You can learn about small fruit that look like mango, together with where they are grown.
The guide gives its timing as: Nakhon Nayok harvest listed as January–March. The harvest period can vary with the growing area and the variety. The calendar does not guarantee that it is on sale on any particular date.
Even within the plum mango group, varieties and names differ. Say you are looking for mayongchid, and ask them to tell you the actual variety and price.
If you would like to read more about the food and the regions behind it, these sources are worth a look. Ingredients and cooking methods can vary from one cook to the next.