Bobhei:

You mention Summercrisp that are 15 year old trees but the subject line says Luscious pear. Which one is it?

I grow Summercrisp. Mine are ripe generally around August 20th in SE WI. IF your question is about Summercrisp, they should be picked at firm ripe stage and
eaten when crispy. They are not like other European pear types that are eaten when soft. Summercrisp is a small
pear with red blush and was selected by U of MN. Supposed to be eaten when crispy.

I find I can pick and store them in the refrigerator for about
3 weeks. They are not spectacular for canning (too small)
nor great quality when allowed to fully ripen til soft.

I just checked mine last Thursday as we are near the picking time. A few more days are needed for my crop.
I will check again tomorrow as they ripen fast. A unique pear as crisp and sweet.

Sorry about the confusion as I have both types but need your guidance on the SC. Thank you. I plan to harvest this Wednesday.