McIntosh apple trees grow at a moderate rate and at maturity will attain heights of around 15 feet (4.5 m). They bloom in early to mid-May with a profusion of white blossoms. The resulting fruit ripens by mid to late September.
How do you know when McIntosh apples are ripe?
Check the Color
In McIntosh apples (Malus domestica "McIntosh") and hardy in USDA zones 4 through 7, the color around the stem lightens and then turns yellow when the apples are mature. Fruits are generally ripe and ready for harvesting during late summer.
Are McIntosh apples in season now?
Depending on the variety, apples are available from late July through early November. Gala, Macoun and McIntosh ones are ready to go in September, so start stocking up now. ... Deep red and golden Macoun apples have a sweeter, tarter flavor; because they're very juicy, they're great for applesauce.