FAQ Home

The following FAQs were found to be helpful by others.

I would like to plant an apple tree this spring. Do I need a second tree for pollination?

Pollination and fertilization are necessary for fruit development.  Pollination is the transfer of pollen from the anther to the stigma.  Fertilization is the union of the male sperm nucleus from the pollen grain and the female egg found in the ovary.  Self-fruitful trees bear fruit when pollen is transferred from the ....

Can blueberries be successfully grown in Iowa?

Blueberries can be successfully grown in Iowa.  However, they do have special growing requirements.  Blueberry plants require a sunny location and a well-drained soil high in organic matter.  Avoid wet, poorly drained sites.  Blueberries are susceptible to root rots in poorly drained soils.  Soil pH is also important.  Blueberries require acid soils ....

Should blueberry plants be fertilized?

Established blueberry plants benefit from an annual application of an acid-producing fertilizer, such as ammonium sulfate.  In early spring, apply ½ to 1 pound of ammonium sulfate per 100 square feet of garden area.  Ammonium sulfate supplies nitrogen to the plants and also helps maintain soil acidity.   ....

Which blueberry varieties perform well in Iowa?

Highbush and half-high blueberries can be successfully grown in Iowa.  Highbush blueberries perform best in central and southern Iowa.  Plants develop into 6 to 8 foot tall shrubs.  Suggested varieties for gardeners in central and southern Iowa include ‘Patriot,’ ‘Blueray,’ ‘Bluecrop,’ ‘Rubel,’ ‘Jersey,’ and ‘Elliott.’  Half-high blueberries possess greater cold hardiness and ....

Which sour (tart) cherry varieties perform well in Iowa?

‘Northstar’ and ‘Meteor’ are two of the best performing sour cherry varieties in Iowa.  Both varieties were introduced by the University of Minnesota and possess excellent cold hardiness.  ‘Northstar’ is a dwarf tree that commonly grows 8 to 10 feet tall.  Its fruit have a mahogany red skin, red flesh, ....

Are sweet cherries hardy in Iowa?

‘Gold,’ BlackGold™, and WhiteGold™ are sweet cherry varieties (cultivars) that can be successfully grown in the southern two-thirds of Iowa.  ‘Gold’ has golden yellow skin.  It is self-unfruitful.  Another late blooming sweet cherry variety must be planted for pollination and fruit set.  BlackGold™ and WhiteGold™ are self-fruitful, mid to late ....

Do I need to plant more than one cherry tree for pollination and fruit set?

Sour or tart cherries are self-fruitful.  Self-pollination occurs when pollen is transferred from the anther to the stigma on the same flower, from another flower on the same plant, or from a flower on another plant of the same variety.  Only one sour cherry tree needs to be planted for ....

Is it safe to plant currants and gooseberries in home gardens in Iowa?

Early in the 1900's, white pine blister rust (Cronartium ribicola) became a serious disease problem in the United States.  White pine blister rust requires both a currant or gooseberry (Ribes species) and white pine to complete its life cycle.  The disease causes little harm to currants and gooseberries, but is ....

What would be a good planting site for gooseberries and currants?

Gooseberries and currants prefer cool, moist, well-drained sites.  Avoid poorly drained, wet soils and hot, dry sites.  To discourage fungal diseases, such as powdery mildew, select sites with good air movement.  Gooseberries and currants tolerate partial shade.  However, maximum fruit yields are produced in areas that receive at least 6 ....

Is it necessary to plant more than one gooseberry variety to obtain fruit?

Most gooseberry and currant varieties are self-fruitful.  It is not necessary to plant two or more varieties for cross-pollination and fruit set.  However, a few currant varieties (such as ‘Crusader’) are self-unfruitful.  When planting a self-unfruitful variety, another variety must be planted for pollination and fruit set.  ....

Previous 1 ... 1 2 3 4 5 ... 26 Next