Ulmus × hollandica 'Pioneer'
Pioneer Dutch Elm

Ulmus × hollandica ′Pioneer′ - Overall Habit

Family:

Ulmaceae (Elm Family) 32

Genus:

Ulmus (Elm) 26

Plant Type:

Tree 569

Growth Forms:

Upright 574

Hardiness:

USDA Zone 5 253

Deciduous / Evergreen:

Deciduous 839

Flower Notes:

Red (Small; not ornamentally important)

Foliage Notes:

Green (Summer foliage); Yellow (Attractive strong yellow fall coloration)

Fruit Notes:

Brown (Green to light brown samaras; not ornamentally important)

Ultimate Height:

50-60 feet

Ultimate Spread:

50-60 feet

Fruiting Times:

Light Requirements:

Soil Notes:

Prefers moist, well-drained soils

Range:

Cultivated origin

Diagnostic Characteristics:

Large, glossy dark green leaves are simple, alternate, unequal at base (oblique), and doubly serrate with parallel venation from mid-vein to teeth.

Purdue Plant Doctor

Parts and Problems of Elm, Zelkova

Special Characteristics:

Fast Growth Rate 229

Pest and/or Disease Resistant 96

Shade Tree 181

Specimen 630

Additional Information

Resistant to Dutch elm disease and phloem necrosis, but susceptible to the elm leaf beetle.

Plant Photo Gallery

Overall Habit

Bark

Leaf

Bark

Bud

Buds & Twigs

Winter Habit

Fruit

When Ulmus × hollandica 'Pioneer' has been observed flowering or fruiting at Purdue University

Flowering

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

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Fruiting

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

Week 1 fruiting not present	Week 2 fruiting not present	Week 3 fruiting not present	Week 4 fruiting not present	Week 5 fruiting not present	Week 6 fruiting not present	Week 7 fruiting not present	Week 8 fruiting not present	Week 9 fruiting not present	Week 10 fruiting not present	Week 11 fruiting not present	Week 12 fruiting not present	Week 13 fruiting not present	Week 14 fruiting not present	Week 15 fruiting present	Week 16 fruiting not present	Week 17 fruiting not present	Week 18 fruiting not present	Week 19 fruiting not present	Week 20 fruiting present	Week 21 fruiting not present	Week 22 fruiting present	Week 23 fruiting present	Week 24 fruiting present	Week 25 fruiting present	Week 26 fruiting not present	Week 27 fruiting not present	Week 28 fruiting not present	Week 29 fruiting not present	Week 30 fruiting not present	Week 31 fruiting not present	Week 32 fruiting not present	Week 33 fruiting not present	Week 34 fruiting not present	Week 35 fruiting not present	Week 36 fruiting not present	Week 37 fruiting not present	Week 38 fruiting not present	Week 39 fruiting not present	Week 40 fruiting not present	Week 41 fruiting not present	Week 42 fruiting not present	Week 43 fruiting not present	Week 44 fruiting not present	Week 45 fruiting not present	Week 46 fruiting not present	Week 47 fruiting not present	Week 48 fruiting not present	Week 49 fruiting not present	Week 50 fruiting not present	Week 51 fruiting not present	Week 52 fruiting not present

25 Ulmus × hollandica 'Pioneer' found

Building Map...

= Heritage plant = Memorial plant

Number	Accession ID	Location
1	ORIG_9906*A	ARMS
2	ORIG_9919*A	ARMS
3	ORIG_9920*A	ARMS
4	ORIG_9913*A	ARMS
5	ORIG_9922*A	ARMS
6	ORIG_9927*A	ARMS
7	ORIG_9926*A	ARMS
8	ORIG_9925*A	ARMS
9	ORIG_9917*A	ARMS
10	ORIG_9911*A	ARMS
11	2010_05937*A	PGMD
12	ORIG_9908*A	ARMS
13	ORIG_9924*A	ARMS
14	ORIG_9915*A	ARMS
15	ORIG_9916*A	ARMS
16	2010_05938*A	PGMD
17	ORIG_9909*A	ARMS
18	ORIG_9910*A	ARMS
19	ORIG_9914*A	ARMS
20	ORIG_9912*A	ARMS
21	ORIG_9907*A	ARMS
22	ORIG_9921*A	ARMS
23	ORIG_9918*A	ARMS
24	ORIG_9923*A	ARMS
25	ORIG_9964*A	ARMS

Other plants like this Ulmus × hollandica 'Pioneer' (Pioneer Dutch Elm)

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