Unto a broken heart — Heart-Cherry

If one is not tall enough, one may not try to fix a broken heart-cherry tree, else both the tree and the person will be suffered.

Unto a broken heart
No other one may go
Without the high prerogative
Itself hath suffered too.
(F.1745/J.1704)
[1] heart:: a heart-cherry tree.
[3] high prerogative:: the privilege of being tall.
[4] suffered too:: the tree and the one who tries to help are both suffered.

A standard white-heart cherry tree, perhaps the finest in Yorkshire, and which, for many generations, had been the pride and ornament of this place, lost two large branches during the gale; ─ Magazine of Natural History, Volume VII (1834)

The Honey-Heart Cherry-Tree. The Honey Heart it one of the very best of all cherries, particularly for the private garden. Some larger kinds, of inferior quality, may be more profitable for the market. But many intelligent horticulturists say that if they had but one cherry-tree for their own use, they would choose the Honey Heart; and we consider this opinion correct. ─ The New England Farmer, Volume I (1849)