If you define orbit to mean the time it takes the Moon to come back to its perigee, that is an anomalistic month, which is 27.55455 days. If you define orbit to mean the time it takes the Moon to return to its ecliptical ascending node, that is a draconic month, which is 27.21222 days.
Almond trees (Prunus dulcis) grow in zones 7 to 9, producing edible fruit and showy, fragrant blooms in hues of white and pink. To achieve the best fruit production, two or more almond trees are required. Almond trees reach heights of only 10 to 15 feet and grow well in compact gardens.
The temperature of Rhode island has been relatively stable since the end of the last advance of the ice age. Now things are slowly changing... The new updated 2012 USDA Plant Maturity Zone map indicates that there are three Growing Zones in Rhode Island; 6a, 6b and 7a! The older 1993 Growing Zone Map from the USDA showed only two coller growing zones in Rhode Island; 5b and 6a.