Isfahan Quince Tree – Features, Fruit and Buying Information
Isfahan is a self-fertile Persian fruiting quince tree grown for its large, pear-shaped, lemon-yellow, sweet, strong aromatic fruit, and spring blossom. It is described as sweeter than many quince varieties commonly grown in the UK, with a finer texture and less astringent taste.
You would choose this Quince tree more for the flavour and aroma than high crop yields, because although yields are good, many others are greater by about 10-15%.
It is not normally treated as a fresh-eating fruit, but may be more palatable uncooked than many quinces when properly ripe. Most buyers should still expect it to be mainly useful for cooking, preserving and flavouring. The fruit can be cooked into puree, jams, quince cheese, membrillo and desserts, or used to flavour drinks such as gin or vodka. Some people use it in meat and vegetable casseroles. When cooked, the fruit can keep its shape and may turn pink or deep red.
The ripe fruit has a strong fragrance and can scent a room when left in a fruit bowl, and by that we mean gently scent, and not capable of outscenting flatulent pets or partners.
The tree itself is attractive, with pinkish-white blossom in spring followed by noticeably large silver-green leaves. The fruit is usually ready to pick in October, once it has turned from greenish yellow to golden yellow, developed a strong quince fragrance and still feels firm. Leave the fruit on the tree as long as possible for the best flavour, but harvest before frost.
As Isfahan is self-fertile and in pollination group 2, it does not normally need another quince tree nearby to crop. A second quince in a similar flowering group may still help improve fruit set, but one tree is usually enough for a good garden crop.
Isfahan Quince Phenol Content – Why It Matters
One of the most interesting points about Isfahan is its fruit phenol content. Phenols are natural fruit compounds linked with sharpness, astringency, browning, antioxidant activity and colour changes during cooking.
Research(1) found Isfahan had one of the highest fruit phenol levels among the 11 tested Persian quince cultivars and genotypes. It also showed high antioxidant capacity in the same study.
For a domestic buyer, this means Isfahan is worth choosing if you want a kitchen quince with stronger flavour character, sharper quince bite and attractive cooking behaviour.
Isfahan Quince Fruit Storage
Isfahan quince has been tested in controlled cold-storage research. Under storage conditions of 0±1°C and 90±5% humidity, research recommended storage for up to four months.
Home storage will not usually match those conditions, but the lesson is useful: pick mature fruit, store only clean and unbruised quinces, keep them as cool as possible, space them apart, and check them regularly. Use any fruit that starts to soften, mark, brown or shrivel first.
Planting Isfahan Quince
Plant Isfahan quince in a sunny, sheltered position. This is general advice for all quince trees but Isfahan needs this more than most. A warm south-facing or west-facing spot is ideal where available.
The soil should be fertile, moisture-retentive and well-drained. Quince trees like soil that does not dry out too quickly, but they should not be planted where the ground stays waterlogged.
Before planting, water the pot well. Dig a generous planting hole, loosen the surrounding soil, and plant the tree at the same depth it was growing in the pot. Firm the soil gently around the roots and water thoroughly after planting.
Keep the tree watered during dry spells while it establishes, especially in the first growing season. A mulch around the base can help keep the soil moist and reduce weed competition, but keep mulch away from direct contact with the stem.
Other Interesting Information About Isfahan Quince
It is named after the ancient city of Isfahan in Iran. Isfahan probably got its name from older Persian forms connected with sp?da / sp?h, meaning army. In plain English, it likely meant “place where the army gathers” or “army place.” Encyclopaedia Iranica supports this, noting that Ptolemy recorded the early form Aspadana, interpreted as “place of gathering for the army.” Source: https://www.iranicaonline.org/articles/isfahan-ii-historical-geography/
Iranian horticultural research describes Isfahan as the most popular quince cultivar in Iran, with desirable fruit quality.
Sources:
1. https://hrcak.srce.hr/file/455784
