Northern Catalpa, Catalpa speciosa
Family Bignoniaceae     Native to northeastern United States
The catalpa grove that surrounds the picnic area on the eastern boundary of the park, along Wolfinger Rd, includes some wonderful mature specimens as well as a larger number of immature ones.

Secor Park, Toledo, Ohio
May 31, 2012
(nex5n)
Hemlock #02 01  Tsuga canadensis, eastern hemlock
Family Pinaceae     Native to eastern North America.
Also called Canada hemlock as per the binomial name.

Toledo Botanical Garden, Ohio
June 3, 2012
(nex5n)
Hemlock #02 04 Tsuga canadensis, eastern hemlock
Family Pinaceae     Native to eastern North America.
Cones both from last year and this year

Toledo Botanical Garden, Ohio
June 3, 2012
(nex5n)
D149-2012 Flame Azalea
Growing in deep shade, this was the latest blooming of its kind.

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified shrub

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified shrub

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified lilac(?)

Demonstration Garden area, Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified lilac(?)
The individual blossoms, and the way the blossoms are grouped in panicles strongly resemble those same features in lilacs.  However, the leaves don't have the characteristic heart shape, smooth surface, and unserrated edges of all the lilacs with which I'm familiar.
Lilacs are closely related to privets, so perhaps this is a variety of privet.

Demonstration Garden area, Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Honeysuckle
Genus Lonicera . . . Family Caprifoliaceae

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified shrub

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified shrub

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
D149-2012 Unidentified shrub

Hidden Lake Gardens, Michigan
May 29, 2012
(nex5n)
See photo in original gallery.