This mango is from the breeding program of Gary Zill in Boynton Beach, FL and was a seedling of Zill-80 (planting # DW-10). It was named after Marlys Zill, sister of Gary and daughter of Laurence Zill. It was later re-named ‘All Summer’, a reference to its extended season.
 
The fruit are round shaped, medium-sized  and red-skin colored similarly to ‘Haden’, with yellow fiberless flesh. It has a classic Florida mango flavor that we find similar to ‘Kent’, with notes of stone fruit. The seed is monoembryonic. 
 
 
The tree has a spreading and moderately vigorous growth habit. It sets fruit well but has struggled to flower completely in the last few warm winters we’ve had. It ripens mid-season here, primarily in July. We are still evaluating ‘Marlys’ for its resistance to bacterial spot and rot, though it seems at least somewhat prone.
 
Flavor: Classic-acidic
Country: Florida - USA