Plum

• plum crops - [1]
• Myrobabalan plum - PFAF shows a red variety.
• Zone 3 black ice plum - Fedco with story - [2]
• Toka plum - -40F - [3]
• Best plums for cold climates - [4]
• prunus nigra - Canadian plum - 4a - [5]
• a few medium quality plums come true from seed - 1765 - encyclopedia of Diderot - [6]
• cold hardy plums! North Dakota extension -[7]
• waneta plum! Fedco - 3 - [8]
• wild, pure (European, Asian), and prune type plums are likely to come true from seed
• fedco plums - [9]
• from Canada - zone 4 and 3 European, hybrid, and Japanese plums! - [10]
• greengages can be grown from seed - [11]. They see green but deceptively sweet
• canadian cold hardy plums - [12]

Links

• Minnesota Agriculture station - [13]
• Wisconsin ag station - [14]
• This one says plum doesn't come true from seed - [15]

Growing from Seed

• Anecdotal - prune plums are most likely to come true from seed, followed by pure breeds. Then hybrids. [16]
• PFAF says it works from seed - Prhnus domestics - [17]