Editing Syzygium jambos (section)

== Zone pushing ==

For growers in zones 8 and 9 testing the limits of outdoor culture:

* Mature trees survive brief dips to -3 °C (26 °F), but young trees require protection.<sup>[[#cite_note-2|[2]]]</sup><sup>[[#cite_note-6|[6]]]</sup> Cover the canopy and mulch the root zone when frost threatens.
* Regular freezes usually prevent fruiting. In areas that freeze every winter, the tree is more likely to remain ornamental than productive.
* A south-facing wall, protection from frost pockets, and overhead canopy cover can improve an in-ground tree's chances by moderating cold.
* Container culture with winter protection is the most reliable strategy in marginal zones. The tree can be moved indoors or into a greenhouse during cold weather.
* In coastal California, the tree may grow vigorously without setting fruit. Adequate heat accumulation is important for flowering and fruit set.

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